[DEVOPS-495] Add git submodule support in AKS deploy workflow (#140)

<details open>
<summary><a href="https://amuniversal.atlassian.net/browse/DEVOPS-495"
title="DEVOPS-495" target="_blank">DEVOPS-495</a></summary>
  <br />
  <table>
    <tr>
      <th>Summary</th>
<td>Add Git submodule support in reusable GitHub Actions workflows</td>
    </tr>
    <tr>
      <th>Type</th>
      <td>
<img alt="Story"
src="https://amuniversal.atlassian.net/images/icons/issuetypes/story.png"
/>
        Story
      </td>
    </tr>
    <tr>
      <th>Status</th>
      <td>In Development Env</td>
    </tr>
    <tr>
      <th>Points</th>
      <td>N/A</td>
    </tr>
    <tr>
      <th>Labels</th>
      <td>-</td>
    </tr>
  </table>
</details>
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## Description

- Add git submodule support in AKS deploy workflow

## Related Links

<!-- List any links related to this pull request here

Replace "JIRA-XXX" with the your Jira issue key -->

- Jira Issue: DEVOPS-495
- Testing environment: [![🚀
Deploy](https://github.com/Andrews-McMeel-Universal/reusable_workflows-test/actions/workflows/deploy.yml/badge.svg?branch=story%2FDEVOPS-495%2Fadd-git-submodule-support)](https://github.com/Andrews-McMeel-Universal/reusable_workflows-test/actions/workflows/deploy.yml)

.github/workflows/aks-deploy.yaml

@@ -81,6 +81,11 @@ on:
         type: string
         description: "The webhook URL for the deployment status"
         default: ${{ vars.MSTEAMS_DEPLOYMENT_WEBHOOK }}
+      checkoutSubmodules:
+        required: false
+        type: string
+        description: "Check out submodules"
+        default: ${{ vars.GIT_CHECKOUT_SUBMODULES }}
     secrets:
       azureClusterName:
         required: true
@@ -98,6 +103,8 @@ on:
         required: false
       webAuthenticationUsername:
         required: false
+      PAT_ACTION_CI:
+        required: false
 
 jobs:
   build:
@@ -108,6 +115,8 @@ jobs:
         uses: actions/checkout@v4
         with:
           ref: ${{ inputs.checkoutRef }}
+          submodules: ${{ inputs.checkoutSubmodules }}
+          token: ${{ secrets.PAT_ACTION_CI || github.token }}
 
       - name: Extract Helm values
         id: setenvs