Build/Test Tools: Update 3rd party GitHub Actions.

This updates the following GitHub Actions to the latest versions:

- `actions/checkout`
- `actions/cache`
- `actions/github-script`
- `actions/setup-node`
- `codecov/codecov-action`
- `shivammathur/setup-php`
- `slackapi/slack-github-action`

See #55652.

git-svn-id: https://develop.svn.wordpress.org/trunk@53581 602fd350-edb4-49c9-b593-d223f7449a82

.github/workflows/phpunit-tests.yml

@@ -110,10 +110,10 @@ jobs:
           echo "PHP_FPM_GID=$(id -g)" >> $GITHUB_ENV
 
       - name: Checkout repository
-        uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579 # v2.4.0
+        uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # v3.0.2
 
       - name: Install NodeJS
-        uses: actions/setup-node@5b52f097d36d4b0b2f94ed6de710023fbb8b2236 # v3.1.0
+        uses: actions/setup-node@eeb10cff27034e7acf239c5d29f62154018672fd # v3.3.0
         with:
           node-version-file: '.nvmrc'
           cache: npm
@@ -132,7 +132,7 @@ jobs:
         run: echo "::set-output name=dir::$(composer config cache-files-dir)"
 
       - name: Cache Composer dependencies
-        uses: actions/cache@136d96b4aee02b1f0de3ba493b1d47135042d9c0 # v3.0.1
+        uses: actions/cache@136d96b4aee02b1f0de3ba493b1d47135042d9c0 # v3.0.4
         env:
           cache-name: cache-composer-dependencies
         with:
@@ -231,7 +231,7 @@ jobs:
 
       - name: Checkout the WordPress Test Reporter
         if: ${{ github.repository == 'WordPress/wordpress-develop' && github.ref == 'refs/heads/trunk' && matrix.report }}
-        uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579 # v2.4.0
+        uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # v3.0.2
         with:
           repository: 'WordPress/phpunit-test-runner'
           path: 'test-runner'