Build/Test Tools: Update all 3rd party actions to their latest versions.

This updates all 3rd party GitHub actions to their latest versions.

- `actions/cache` from `2.1.6` to `3.0.1`.
- `actions/github-script` from `5.0.0` to `6.0.0`.
- `actions/setup-node` from `2.4.1` to `3.1.0`.
- `codecov/codecov-action` from `2.1.0` to `3.0.0`.
- `ramsey/composer-install` from `1.3.0` to `2.1.0`.
- `shivammathur/setup-php` from `2.15.0` to `2.18.0`.

Additionally, this updates all instances of the `actions/setup-node` action to replace the `node-version` option with the new `node-version-file`. This simplifies the process of changing the version of NodeJS used in workflows by only requiring the version to be changed once in the `.nvmrc` file.

See #54725.

git-svn-id: https://develop.svn.wordpress.org/trunk@53112 602fd350-edb4-49c9-b593-d223f7449a82

.github/workflows/javascript-tests.yml

@@ -66,9 +66,9 @@ jobs:
           svn --version
 
       - name: Install NodeJS
-        uses: actions/setup-node@270253e841af726300e85d718a5f606959b2903c # v2.4.1
+        uses: actions/setup-node@5b52f097d36d4b0b2f94ed6de710023fbb8b2236 # v3.1.0
         with:
-          node-version: 14
+          node-version-file: '.nvmrc'
           cache: npm
 
       - name: Log debug information