Build/Test Tools: Add additional innovation release excludes.

This excludes MySQL 9.5 jobs for the installation testing workflow. Only the most recent innovation release of MySQL should be tested.

Follow up to [61875].

See #64225, #64227.

git-svn-id: https://develop.svn.wordpress.org/trunk@62023 602fd350-edb4-49c9-b593-d223f7449a82

Author: desrosj

.github/workflows/install-testing.yml

@@ -94,6 +94,7 @@ jobs:
           - db-version: '9.2'
           - db-version: '9.3'
           - db-version: '9.4'
+          - db-version: '9.5'
           # MySQL 9.0+ will not work on PHP 7.2 & 7.3. See https://core.trac.wordpress.org/ticket/61218.
           - php: '7.2'
             db-version: '9.6'