Update workflow to use environment variables

- The workflow has been updated to use environment variables instead of hardcoded values.
- This change improves the flexibility and maintainability of the workflow.
- The changes include using `$GITHUB_OUTPUT` to store the commit message and `$COMMIT_MESSAGE` to retrieve it.

.gitea/workflows/main.yml

@@ -36,9 +36,8 @@ jobs:
         && echo \"Done!\nArchived to ${ZIP_FILENAME} and copied module.js.\"
     
     - name: Setting commit message
-      run: echo "COMMIT_MSG=$(git log -1 --pretty=%B)" >> "$GITHUB_ENV" && echo "COMMIT MESSAGE IS `$COMMIT_MSG`"
+      id: commit-message
-    - name: Retrieve commit message
+      run: COMMIT_MESSAGE=$(git log -1 --pretty=%B); echo "COMMIT_MESSAGE=$COMMIT_MESSAGE" >> "$GITHUB_OUTPUT" && echo "commit message is '$COMMIT_MESSAGE'"
-      run: echo "${{ env.COMMIT_MESSAGE }}"
 
     # Create a release for this specific version
     - name: Update Release with Files
@@ -48,4 +47,4 @@ jobs:
         files: |-
             ./dist/module.json
             ./dist/module.zip
-        body: ${{ env.COMMIT_MESSAGE }}
+        body: ${{ steps.commit-message.outputs.COMMIT_MESSAGE }}