Update .github directory from main branch (#9155)

.github/actions/verify-release/action.yml

@@ -0,0 +1,55 @@
+name: 'Verify an NPM release'
+description: 'Fetches a package from NPM and does some basic smoke tests'
+
+inputs:
+  npm-package:
+    description: 'NPM Package'
+    required: true
+    default: '@google/gemini-cli@latest'
+  expected-version:
+    description: 'Expected version'
+    required: true
+  ref:
+    description: 'The branch, tag, or SHA to release from.'
+    required: false
+    type: 'string'
+    default: 'main'
+
+runs:
+  using: 'composite'
+  steps:
+    - name: '📝 Print Inputs'
+      shell: 'bash'
+      run: |
+        echo "${{ toJSON(inputs) }}"
+    - name: 'Checkout'
+      uses: 'actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955' # ratchet:actions/checkout@v4
+      with:
+        ref: '${{ github.event.inputs.ref }}'
+        fetch-depth: 0
+
+    - name: 'Install from NPM'
+      uses: 'nick-fields/retry@ce71cc2ab81d554ebbe88c79ab5975992d79ba08' # ratchet:nick-fields/retry@v3
+      with:
+        timeout_seconds: 900
+        retry_wait_seconds: 30
+        max_attempts: 10
+        command: |-
+          npm install --prefer-online --no-cache -g ${{ inputs.npm-package }}
+
+    # This provides a very basic smoke test for Gemini CLI
+    - name: 'Run Gemini CLI'
+      id: 'gemini_cli'
+      shell: 'bash'
+      run: |-
+        echo "gemini_version=$(gemini --version)" >> $GITHUB_OUTPUT
+
+    # Force a failure if it doesn't match
+    - name: 'Fail workflow if version does not match'
+      if: '${{ steps.gemini_cli.outputs.gemini_version != inputs.expected-version }}'
+      shell: 'bash'
+      run: |-
+        echo '❌ Got ${{ steps.gemini_cli.outputs.gemini_version }} from ${{ inputs.npm-package }}'
+        echo '❌ Expected Version ${{ inputs.expected-version }}'
+
+        exit 1