fix!: drop PHP 7.4–8.1 support to address insecure dependencies

PHP 7.4, 8.0, and 8.1 are all end-of-life and block upgrading
dependencies with known security vulnerabilities. This raises the
minimum supported PHP version to 8.2.

Changes:
- composer.json: PHP ^8.2, PHPUnit ^10.0||^11.0, PHPStan ^1.0.0
- CI matrix: ['8.2', '8.3', '8.4', '8.5']
- phpunit.xml: replace deprecated filter/whitelist with source/include

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: ramsessanchez

.github/workflows/pr-validation.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-versions: ['7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
+        php-versions: ['8.2', '8.3', '8.4', '8.5']
     steps:
     - name: Setup PHP
       uses: shivammathur/setup-php@v2

composer.json

@@ -12,12 +12,12 @@
 		}
 	],
 	"require": {
-		"php": "^8.0 || ^7.4",
+		"php": "^8.2",
 		"microsoft/microsoft-graph-core": "^2.2.1"
     },
 	"require-dev": {
-		"phpunit/phpunit": "^8.0 || ^9.0",
-		"phpstan/phpstan": "^0.12.90 || ^1.0.0"
+		"phpunit/phpunit": "^10.0 || ^11.0",
+		"phpstan/phpstan": "^1.0.0"
 	},
 	"autoload": {
 		"psr-4": {

phpunit.xml

@@ -5,10 +5,12 @@
 			<directory>tests</directory>
 		</testsuite>
 	</testsuites>
-	<filter>
-		<whitelist addUncoveredFilesFromWhitelist="true">
+	<source>
+		<include>
 			<directory suffix=".php">src</directory>
-			<exclude><directory suffix=".php">src/Generated</directory></exclude>
-		</whitelist>
-	</filter>
+		</include>
+		<exclude>
+			<directory suffix=".php">src/Generated</directory>
+		</exclude>
+	</source>
 </phpunit>