Use a different cache key for the PR automation workflow (#32588)

* Use a different cache key for the PR automation workflow.

* Update the `chalk` dependency to the latest version.

.github/workflows/pull-request-automation.yml

@@ -29,11 +29,13 @@ jobs:
               with:
                   # npm cache files are stored in `~/.npm` on Linux/macOS
                   path: ~/.npm
-                  key: ${{ runner.os }}-node-${{ matrix.node }}-npm-cache-${{ hashFiles('**/package-lock.json') }}
+                  key: ${{ runner.os }}-node-${{ matrix.node }}-npm-pr-automation-cache-${{ hashFiles('**/package-lock.json') }}
 
             # Changing into the action's directory and running `npm install` is much
             # faster than a full project-wide `npm ci`.
-            - run: cd packages/project-management-automation && npm install
+            - name: Install NPM dependencies
+              run: npm install
+              working-directory: packages/project-management-automation
 
             - uses: ./packages/project-management-automation
               with:

package.json

@@ -154,7 +154,7 @@
 		"babel-plugin-transform-remove-console": "6.9.4",
 		"benchmark": "2.1.4",
 		"browserslist": "4.16.6",
-		"chalk": "4.0.0",
+		"chalk": "4.1.1",
 		"commander": "4.1.0",
 		"concurrently": "3.5.0",
 		"copy-webpack-plugin": "5.1.2",