ACMS-3658: Run PHPUnit tests for Drush 11 as well.

.github/workflows/drs_ci.yml

@@ -47,16 +47,24 @@ jobs:
          ../orca/bin/ci/after_failure.sh
          ../orca/bin/ci/after_script.sh
  PHPUNIT_TESTS:
-    name: "Run PHPUnit tests on PHP: ${{ matrix.php-version }}"
+    name: "Run PHPUnit tests for CORE: ${{ matrix.orca-job }}, PHP: ${{ matrix.php-version }}"
     runs-on: ubuntu-latest
     strategy:
       matrix:
         php-version:
           - 8.1
           - 8.2
           - 8.3
+        orca-job:
+          - ISOLATED_TEST_ON_CURRENT
+          - ISOLATED_TEST_ON_PREVIOUS_MINOR
+        exclude:
+          - orca-job: ISOLATED_TEST_ON_PREVIOUS_MINOR
+            php-version: 8.3
+          - orca-job: ISOLATED_TEST_ON_PREVIOUS_MINOR
+            php-version: 8.2
     env:
-      ORCA_JOB: ISOLATED_TEST_ON_CURRENT
+      ORCA_JOB: ${{ matrix.orca-job }}
       CI: TRUE
       ORCA_TEST_BOOTSTRAP_FILE: ${{ github.workspace }}/tests/src/bootstrap.php
     steps:

tests/packages_alter.yml

@@ -1,2 +1,12 @@
 acquia/drupal-recommended-settings:
   type: composer-plugin
+
+drush/drush:
+  is_company_package: false
+  core_matrix:
+    10.1.x:
+      version: 11.x
+      version_dev: 11.x
+    '*':
+      version: 12.x
+      version_dev: 12.x-dev