Add PHP 8.1 to the test matrix

Author: rybakit

.github/workflows/qa.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         operating-system: [ubuntu-latest]
-        php-versions: ['7.1', '7.2', '7.3', '7.4', '8.0']
+        php-versions: ['7.1', '7.2', '7.3', '7.4', '8.0', '8.1']
     runs-on: ${{ matrix.operating-system }}
     steps:
       - name: Checkout
@@ -52,7 +52,7 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '7.4'
+          php-version: '8.0'
           extensions: msgpack
           coverage: none
 
@@ -83,9 +83,22 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '7.4'
-          tools: php-cs-fixer
+          php-version: 8.0
           coverage: none
 
+      - name: Get composer cache directory
+        id: composer-cache
+        run: echo "::set-output name=dir::$(composer config cache-files-dir)"
+
+      - name: Cache composer dependencies
+        uses: actions/cache@v2
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
+          restore-keys: ${{ runner.os }}-composer-
+
+      - name: Install dependencies
+        run: composer install --no-progress --prefer-dist --optimize-autoloader
+
       - name: Check code style
-        run: php-cs-fixer fix --dry-run --diff --verbose .
+        run: vendor/bin/php-cs-fixer fix --dry-run --diff --verbose .

src/Client/TestDoubleClientBuilder.php

@@ -51,7 +51,10 @@ public function __construct(TestCase $testCase)
 
     public static function buildDummy() : Client
     {
-        /** @psalm-suppress PropertyNotSetInConstructor */
+        /**
+         * @psalm-suppress InternalMethod
+         * @psalm-suppress PropertyNotSetInConstructor
+         */
         $self = new self(new class() extends TestCase {
         });