Bump min. php-version to 8.2

Author: tvdijen

.github/workflows/php.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-version: ['8.1', '8.2', '8.3', '8.4']
+        php-version: ['8.2', '8.3', '8.4']
 
     uses: simplesamlphp/simplesamlphp-test-framework/.github/workflows/reusable_phplinter.yml@v1.10.0
     with:
@@ -44,7 +44,7 @@ jobs:
       fail-fast: false
       matrix:
         operating-system: [ubuntu-latest]
-        php-versions: ['8.1', '8.2', '8.3', '8.4']
+        php-versions: ['8.2', '8.3', '8.4']
 
     steps:
       - name: Setup PHP, with composer and extensions
@@ -107,7 +107,7 @@ jobs:
       fail-fast: true
       matrix:
         operating-system: [windows-latest]
-        php-versions: ['8.1', '8.2', '8.3', '8.4']
+        php-versions: ['8.2', '8.3', '8.4']
 
     steps:
       - name: Setup PHP, with composer and extensions
@@ -218,7 +218,7 @@ jobs:
         uses: shivammathur/setup-php@v2
         with:
           # Should be the lowest supported version
-          php-version: '8.1'
+          php-version: '8.2'
           extensions: ctype, date, dom, filter, hash, intl, mbstring, openssl, pcre, spl, xml
           tools: composer
           coverage: none