Add missing php versions to test pipeline (#29)

Copy the work from the main branch that was done in #21,
and add php version 8.2, 8.3 and 8.4 to the pipeline #26.

Author: marein

.github/workflows/main.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         operating-system: [ubuntu-latest]
-        php-version: ['7.4', '8.0', '8.1']
+        php-version: ['7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
     name: ${{ matrix.php-version }}
     runs-on: ${{ matrix.operating-system }}
     steps:

.gitignore

@@ -1,4 +1,5 @@
 /vendor
+/composer.lock
 /phpcs.xml
 /phpstan.neon
 /phpunit.xml

composer.json

@@ -25,7 +25,7 @@
   "require-dev": {
     "phpunit/phpunit": "^9.5",
     "symfony/process": "^5.4",
-    "squizlabs/php_codesniffer": "^3.6",
-    "phpstan/phpstan": "^1.2"
+    "squizlabs/php_codesniffer": "3.6.2",
+    "phpstan/phpstan": "1.3.3"
   }
 }