Build/Test Tools: Run code coverage workflow using parallel jobs.

This splits the code coverage workflow into two separate jobs, allowing single site and multisite to run in parallel. This cuts the total workflow run time in half.

Fixes #52923.

git-svn-id: https://develop.svn.wordpress.org/trunk@50594 602fd350-edb4-49c9-b593-d223f7449a82

.github/workflows/test-coverage.yml

@@ -47,9 +47,13 @@ jobs:
   # - Run the PHPUnit tests as a multisite.
   # - Upload the multisite code coverage report to Codecov.io.
   test-coverage-report:
-    name: Generate a code coverage report
+    name: ${{ matrix.multisite && 'Multisite' || 'Single site' }} report
     runs-on: ubuntu-latest
     if: ${{ github.repository == 'WordPress/wordpress-develop' }}
+    strategy:
+      fail-fast: false
+      matrix:
+        multisite: [ false, true ]
 
     steps:
       - name: Configure environment variables
@@ -122,18 +126,22 @@ jobs:
         run: npm run env:install
 
       - name: Run tests as a single site
+        if: ${{ ! matrix.multisite }}
         run: npm run test:${{ env.PHPUNIT_SCRIPT }} -- --verbose -c phpunit.xml.dist --coverage-clover wp-code-coverage-single-clover-${{ github.sha }}.xml
 
       - name: Upload single site report to Codecov
+        if: ${{ ! matrix.multisite }}
         uses: codecov/codecov-action@e156083f13aff6830c92fc5faa23505779fbf649 # v1.2.1
         with:
           file: wp-code-coverage-single-clover-${{ github.sha }}.xml
           flags: single,php
 
       - name: Run tests as a multisite install
+        if: ${{ matrix.multisite }}
         run: npm run test:${{ env.PHPUNIT_SCRIPT }} -- --verbose -c tests/phpunit/multisite.xml --coverage-clover wp-code-coverage-multisite-clover-${{ github.sha }}.xml
 
       - name: Upload multisite report to Codecov
+        if: ${{ matrix.multisite }}
         uses: codecov/codecov-action@e156083f13aff6830c92fc5faa23505779fbf649 # v1.2.1
         with:
           file: wp-code-coverage-multisite-clover-${{ github.sha }}.xml