Workflows: Add WP 6.8, 6.9 and PHP 8.5 to PHPUnit tests. (fairpm#380)

Signed-off-by: costdev <79332690+costdev@users.noreply.github.com>

Author: costdev

.github/workflows/phpunit-tests.yml

@@ -35,9 +35,41 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-version: [ '7.4', '8.0', '8.1', '8.2', '8.3', '8.4' ]
-        wp-version: [ '5.4', '5.5', '5.6', '5.7', '5.8', '5.9', '6.0', '6.1', '6.2', '6.3', '6.4', '6.5', '6.6', '6.7' ]
+        php-version: [ '7.4', '8.0', '8.1', '8.2', '8.3', '8.4', '8.5' ]
+        wp-version: [ '5.4', '5.5', '5.6', '5.7', '5.8', '5.9', '6.0', '6.1', '6.2', '6.3', '6.4', '6.5', '6.6', '6.7', '6.8', '6.9' ]
         exclude:
+          # PHP 8.5 exclusions
+          - wp-version: '6.8'
+            php-version: '8.5'
+          - wp-version: '6.7'
+            php-version: '8.5'
+          - wp-version: '6.6'
+            php-version: '8.5'
+          - wp-version: '6.5'
+            php-version: '8.5'
+          - wp-version: '6.4'
+            php-version: '8.5'
+          - wp-version: '6.3'
+            php-version: '8.5'
+          - wp-version: '6.2'
+            php-version: '8.5'
+          - wp-version: '6.1'
+            php-version: '8.5'
+          - wp-version: '6.0'
+            php-version: '8.5'
+          - wp-version: '5.9'
+            php-version: '8.5'
+          - wp-version: '5.8'
+            php-version: '8.5'
+          - wp-version: '5.7'
+            php-version: '8.5'
+          - wp-version: '5.6'
+            php-version: '8.5'
+          - wp-version: '5.5'
+            php-version: '8.5'
+          - wp-version: '5.4'
+            php-version: '8.5'
+
           # PHP 8.4 exclusions
           - wp-version: '6.6'
             php-version: '8.4'