Build/Test Tools: Forward multisite settings in the fork test matrix.

The limited matrix job for forks declared multisite include rows but never forwarded multisite or phpunit-config parameters to the reusable workflow, so those rows fell back to single-site defaults and duplicated existing single-site jobs.

Developed in: WordPress#12693

Props adrianmoldovanwp.
Fixes #65712.


git-svn-id: https://develop.svn.wordpress.org/trunk@62951 602fd350-edb4-49c9-b593-d223f7449a82

Author: lancewillett

.github/workflows/phpunit-tests.yml

@@ -346,7 +346,9 @@ jobs:
       php: ${{ matrix.php }}
       db-version: ${{ matrix.db-version }}
       db-type: ${{ matrix.db-type }}
+      multisite: ${{ matrix.multisite }}
       memcached: ${{ matrix.memcached || false }}
+      phpunit-config: ${{ matrix.multisite && 'tests/phpunit/multisite.xml' || 'phpunit.xml.dist' }}
       phpunit-test-groups: ${{ matrix.phpunit-test-groups || '' }}
       gutenberg-artifact: gutenberg-build
       gutenberg-sha: ${{ needs.prepare-gutenberg.outputs.gutenberg-sha }}