Replacing pnpx command with pnpm (#98)

# What 💻 
* Replacing pnpx command with pnpm (pnpx is deprecated)

# Why ✋
* Pnpx command cause errors

# Evidence 📷
Include screenshots, screen recordings, or `console` output here
demonstrating that your changes work as intended

<!-- All sections below are optional. You can uncomment any section
applicable to your Pull Request. -->

<!-- # Notes 📝
* Any notes/thoughts that the reviewers should know prior to reviewing
the code? -->

content/00.build/10.zksync-101/_hello-zksync/_hardhat_deploy_contract.md

@@ -138,10 +138,10 @@ yarn hardhat deploy-zksync --script deploy.ts
 ```
 
 ```bash [pnpm]
-pnpx exec hardhat deploy-zksync --script deploy.ts
+pnpm exec hardhat deploy-zksync --script deploy.ts
 # The deploy keyword will trigger the `deploy` script command on `package.json`
 # To deploy the contract on local in-memory node:
-# pnpx exec hardhat deploy-zksync --script deploy.ts --network inMemoryNode
+# pnpm exec hardhat deploy-zksync --script deploy.ts --network inMemoryNode
 ```
 
 ```bash [bun]

content/00.build/10.zksync-101/_paymasters/_approval_paymaster_flow.md

@@ -228,9 +228,9 @@ yarn hardhat deploy-zksync --script deployApprovalFlowPaymaster.ts
 ```
 
 ```bash [pnpm]
-pnpx exec hardhat deploy-zksync --script deployApprovalFlowPaymaster.ts
+pnpm exec hardhat deploy-zksync --script deployApprovalFlowPaymaster.ts
 # To deploy the contract on local in-memory node:
-# pnpx exec hardhat deploy-zksync --script deployApprovalFlowPaymaster.ts --network inMemoryNode
+# pnpm exec hardhat deploy-zksync --script deployApprovalFlowPaymaster.ts --network inMemoryNode
 ```
 
 ```bash [bun]
@@ -386,7 +386,7 @@ yarn hardhat deploy-zksync --script interact/interactWithApprovalFlowPaymaster.t
 ```
 
 ```bash [pnpm]
-pnpx exec hardhat deploy-zksync --script interact/interactWithApprovalFlowPaymaster.ts
+pnpm exec hardhat deploy-zksync --script interact/interactWithApprovalFlowPaymaster.ts
 ```
 
 ```bash [bun]

content/00.build/10.zksync-101/_paymasters/_general_paymaster_flow.md

@@ -197,9 +197,9 @@ yarn hardhat deploy-zksync --script deployGaslessPaymaster.ts
 ```
 
 ```bash [pnpm]
-pnpx exec hardhat deploy-zksync --script deployGaslessPaymaster.ts
+pnpm exec hardhat deploy-zksync --script deployGaslessPaymaster.ts
 # To deploy the contract on local in-memory node:
-# pnpx exec hardhat deploy-zksync --script deployGaslessPaymaster.ts --network inMemoryNode
+# pnpm exec hardhat deploy-zksync --script deployGaslessPaymaster.ts --network inMemoryNode
 ```
 
 ```bash [bun]
@@ -337,7 +337,7 @@ yarn hardhat deploy-zksync --script interact/interactWithGaslessPaymaster.ts
 ```
 
 ```bash [pnpm]
-pnpx exec hardhat deploy-zksync --script interact/interactWithGaslessPaymaster.ts
+pnpm exec hardhat deploy-zksync --script interact/interactWithGaslessPaymaster.ts
 ```
 
 ```bash [bun]

content/00.build/10.zksync-101/_testing/_hardhat_contract_testing.md

@@ -212,7 +212,7 @@ yarn hardhat test --network hardhat
 ```
 
 ```bash [pnpm]
-pnpx exec hardhat test --network hardhat
+pnpm exec hardhat test --network hardhat
 ```
 
 ```bash [bun]

content/00.build/10.zksync-101/_upgrading/_beacon/_hardhat_beacon_contract_upgradability.md

@@ -185,9 +185,9 @@ yarn hardhat deploy-zksync --script deployBeaconProxy.ts
 ```
 
 ```bash [pnpm]
-pnpx exec hardhat deploy-zksync --script deployBeaconProxy.ts
+pnpm exec hardhat deploy-zksync --script deployBeaconProxy.ts
 # To deploy the contract on local in-memory node:
-# pnpx exec hardhat deploy-zksync --script deployBeaconProxy.ts --network inMemoryNode
+# pnpm exec hardhat deploy-zksync --script deployBeaconProxy.ts --network inMemoryNode
 ```
 
 ```bash [bun]
@@ -356,7 +356,7 @@ yarn hardhat deploy-zksync --script upgrade-scripts/upgradeBeaconCrowdfundingCam
 ```
 
 ```bash [pnpm]
-pnpx exec hardhat deploy-zksync --script upgrade-scripts/upgradeBeaconCrowdfundingCampaign.ts
+pnpm exec hardhat deploy-zksync --script upgrade-scripts/upgradeBeaconCrowdfundingCampaign.ts
 ```
 
 ```bash [bun]
@@ -395,7 +395,7 @@ yarn hardhat verify <BEACON-PROXY-ADDRESS>
 ```
 
 ```bash [pnpm]
-pnpx exec hardhat verify <BEACON-PROXY-ADDRESS>
+pnpm exec hardhat verify <BEACON-PROXY-ADDRESS>
 ```
 
 ```bash [bun]

content/00.build/10.zksync-101/_upgrading/_transparent/_hardhat_transparent_contract_upgradability.md

@@ -178,9 +178,9 @@ yarn hardhat deploy-zksync --script deployTransparentProxy.ts
 ```
 
 ```bash [pnpm]
-pnpx exec hardhat deploy-zksync --script deployTransparentProxy.ts
+pnpm exec hardhat deploy-zksync --script deployTransparentProxy.ts
 # To deploy the contract on local in-memory node:
-# pnpx exec hardhat deploy-zksync --script deployTransparentProxy.ts --network inMemoryNode
+# pnpm exec hardhat deploy-zksync --script deployTransparentProxy.ts --network inMemoryNode
 ```
 
 ```bash [bun]
@@ -336,7 +336,7 @@ yarn hardhat deploy-zksync --script upgrade-scripts/upgradeCrowdfundingCampaign.
 ```
 
 ```bash [pnpm]
-pnpx exec hardhat deploy-zksync --script upgrade-scripts/upgradeCrowdfundingCampaign.ts
+pnpm exec hardhat deploy-zksync --script upgrade-scripts/upgradeCrowdfundingCampaign.ts
 ```
 
 ```bash [bun]
@@ -377,7 +377,7 @@ yarn hardhat verify <PROXY-ADDRESS>
 ```
 
 ```bash [pnpm]
-pnpx exec hardhat verify <PROXY-ADDRESS>
+pnpm exec hardhat verify <PROXY-ADDRESS>
 ```
 
 ```bash [bun]

content/00.build/10.zksync-101/_upgrading/_uups/_hardhat_uups_contract_upgradability.md

@@ -191,9 +191,9 @@ yarn hardhat deploy-zksync --script deployUUPS.ts
 ```
 
 ```bash [pnpm]
-pnpx exec hardhat deploy-zksync --script deployUUPS.ts
+pnpm exec hardhat deploy-zksync --script deployUUPS.ts
 # To deploy the contract on local in-memory node:
-# pnpx exec hardhat deploy-zksync --script deployUUPS.ts --network inMemoryNode
+# pnpm exec hardhat deploy-zksync --script deployUUPS.ts --network inMemoryNode
 ```
 
 ```bash [bun]
@@ -346,7 +346,7 @@ yarn hardhat deploy-zksync --script upgrade-scripts/upgradeUUPSCrowdfundingCampa
 ```
 
 ```bash [pnpm]
-pnpx exec hardhat deploy-zksync --script upgrade-scripts/upgradeUUPSCrowdfundingCampaign.ts
+pnpm exec hardhat deploy-zksync --script upgrade-scripts/upgradeUUPSCrowdfundingCampaign.ts
 ```
 
 ```bash [bun]
@@ -382,7 +382,7 @@ yarn hardhat verify <PROXY-ADDRESS>
 ```
 
 ```bash [pnpm]
-pnpx exec hardhat verify <PROXY-ADDRESS>
+pnpm exec hardhat verify <PROXY-ADDRESS>
 ```
 
 ```bash [bun]