chore: align project workflows with PHP 8.3 baseline

Author: michalsn

.github/workflows/phpcsfixer.yml

@@ -27,7 +27,7 @@ jobs:
       - name: Set up PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.1'
+          php-version: '8.3'
           extensions: json, tokenizer
           coverage: none
         env:

.github/workflows/phpstan.yml

@@ -26,7 +26,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['8.1', '8.2', '8.3', '8.4']
+        php-versions: ['8.3', '8.5']
 
     steps:
       - name: Checkout

.github/workflows/psalm.yml

@@ -31,7 +31,7 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.1'
+          php-version: '8.3'
           tools: phpstan, phpunit
           extensions: intl, json, mbstring, xml
           coverage: none

.github/workflows/rector.yml

@@ -26,7 +26,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['8.1', '8.2', '8.3', '8.4']
+        php-versions: ['8.3', '8.5']
 
     steps:
       - name: Checkout