build with PHP 8.4

Author: hrach

.github/workflows/build.yml

@@ -17,13 +17,15 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-version: [ '8.1', '8.2', '8.3' ]
+        php-version: [ '8.1', '8.2', '8.3', '8.4' ]
         deps: [ 'lowest', 'newest' ]
         exclude:
-          - php-version: '8.1'
-            deps: lowest
           - php-version: '8.2'
             deps: lowest
+          - php-version: '8.3'
+            deps: lowest
+          - php-version: '8.4'
+            deps: lowest
 
     runs-on: ubuntu-latest