Enhance approval gate workflow with commit SHA and message retrieval

- Added steps to the approval gate job to retrieve the commit SHA and message from the pull request, improving the workflow's ability to handle commit information effectively.
- Updated the environment condition to ensure proper execution based on author association and event type.

Author: kubabuczak

.github/workflows/distroless-build-test-push-workflow.yml

@@ -15,7 +15,44 @@ on:
     - develop
 jobs:
   approval-gate:
-    uses: ./.github/workflows/approval-gate.yml
+    permissions:
+      contents: read
+    runs-on: ubuntu-latest
+    outputs:
+      commit-sha: ${{ steps.get-sha.outputs.commit_sha }}
+      commit-message: ${{ steps.get-message.outputs.commit_message }}
+    environment: ${{
+            (github.event_name == 'pull_request_target' &&
+            !contains(fromJSON('["MEMBER", "OWNER", "COLLABORATOR"]'), github.event.pull_request.author_association))
+            && inputs.environment-name
+            || (github.event_name == 'pull_request' && inputs.environment-name)
+            || ''
+        }}
+    steps:
+      - name: Checkout repository
+        uses:  actions/checkout@v6
+        with:
+          ref: ${{ github.event.pull_request.head.sha || github.sha }}
+      - name: Get commit SHA
+        id: get-sha
+        run: |
+          COMMIT_SHA="${{ github.event.pull_request.head.sha || github.sha }}"
+          echo "commit_sha=${COMMIT_SHA}" >> $GITHUB_OUTPUT
+          echo "Commit SHA: ${COMMIT_SHA}"
+      - name: Get commit message
+        id: get-message
+        run: |
+          COMMIT_MSG=$(git log -1 --pretty=%B)
+          echo "commit_message<<EOF" >> $GITHUB_OUTPUT
+          echo "$COMMIT_MSG" >> $GITHUB_OUTPUT
+          echo "EOF" >> $GITHUB_OUTPUT
+          echo "Commit message:"
+          echo "$COMMIT_MSG"
+      - name: Approval status
+        run: |
+          echo "Event: ${{ github.event_name }}"
+          echo "Author association: ${{ github.event.pull_request.author_association }}"
+          echo "Approval granted or not required"
   check-formating:
     runs-on: ubuntu-latest
     needs: approval-gate