chore(php-8.4): support both 8.2 and 8.4 via composer + CI matrix

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: cb-freddysart

.github/workflows/tests.yml

@@ -0,0 +1,48 @@
+name: Tests
+
+on:
+  push:
+    branches:
+      - develop
+      - master
+      - main
+      - 'feat/**'
+      - 'fix/**'
+      - 'chore/**'
+  pull_request:
+    branches:
+      - develop
+      - master
+      - main
+
+jobs:
+  tests:
+    name: PHP ${{ matrix.php-version }}
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        php-version:
+          - '8.2'
+          - '8.4'
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-version }}
+          coverage: none
+          tools: composer:v2
+
+      - name: Validate composer.json
+        run: composer validate --strict --no-check-publish
+
+      - name: Install dependencies
+        run: composer update --prefer-dist --no-interaction --no-progress
+
+      - name: Run PHPUnit
+        run: vendor/bin/phpunit --testsuite=Unit

composer.json

@@ -10,7 +10,7 @@
         }
     ],
     "require": {
-        "php": "^8.4",
+        "php": "^8.2 || ^8.4",
         "psr/http-message": "^1.0",
         "php-http/client-common": "^2.2",
         "php-http/httplug": "^2.2",