fix: add shell to composite action

.github/actions/setup-kurtosis/action.yml

@@ -2,7 +2,7 @@
 name: "Setup Kurtosis"
 description: "Setup Kurtosis CDK for tests"
 runs:
-  using: 'composite'
+  using: "composite"
   steps:
     - name: Checkout cdk-erigon
       uses: actions/checkout@v4
@@ -23,6 +23,7 @@ runs:
       uses: foundry-rs/foundry-toolchain@v1
 
     - name: Install polycli
+      shell: bash
       run: |
         tmp_dir=$(mktemp -d) && curl -L https://github.com/0xPolygon/polygon-cli/releases/download/v0.1.48/polycli_v0.1.48_linux_amd64.tar.gz | tar -xz -C "$tmp_dir" && mv "$tmp_dir"/* /usr/local/bin/polycli && rm -rf "$tmp_dir"
         sudo chmod +x /usr/local/bin/polycli
@@ -33,6 +34,7 @@ runs:
 
     - name: Remove unused flags
       working-directory: ./kurtosis-cdk
+      shell: bash
       run: |
         sed -i '/zkevm.sequencer-batch-seal-time:/d' templates/cdk-erigon/config.yml
         sed -i '/zkevm.sequencer-non-empty-batch-seal-time:/d' templates/cdk-erigon/config.yml
@@ -42,11 +44,13 @@ runs:
 
     - name: Create params.yml overrides
       working-directory: ./kurtosis-cdk
+      shell: bash
       run: |
         echo 'args:' > params.yml
         echo '  cdk_erigon_node_image: cdk-erigon:local' >> params.yml
         echo '  el-1-geth-lighthouse: ethpandaops/lighthouse@sha256:4902d9e4a6b6b8d4c136ea54f0e51582a32f356f3dec7194a1adee13ed2d662e' >> params.yml
 
     - name: Deploy Kurtosis CDK package
       working-directory: ./kurtosis-cdk
+      shell: bash
       run: kurtosis run --enclave cdk-v1 --args-file params.yml --image-download always .