Update CI workflows (#552)

Author: GrahamCampbell

.github/workflows/ci.yml

@@ -6,7 +6,7 @@ on:
 jobs:
   build:
     name: Build
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     strategy:
       max-parallel: 10
       matrix:
@@ -21,11 +21,7 @@ jobs:
           extensions: mbstring
 
       - name: Checkout code
-        uses: actions/checkout@v2
-
-      - name: Mimic PHP 8.0
-        run: composer config platform.php 8.0.999
-        if: matrix.php > 8
+        uses: actions/checkout@v3
 
       - name: Install dependencies
         run: composer update --no-interaction --no-progress

.github/workflows/integration.yml

@@ -4,14 +4,13 @@ on:
   pull_request:
 
 jobs:
-
   build:
     name: Test
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     strategy:
       max-parallel: 10
       matrix:
-        php: ['7.2', '7.3', '7.4', '8.0']
+        php: ['7.2', '7.3', '7.4', '8.0', '8.1']
 
     steps:
       - name: Set up PHP
@@ -21,7 +20,7 @@ jobs:
           coverage: none
 
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Download dependencies
         uses: ramsey/composer-install@v1

.github/workflows/static.yml

@@ -6,11 +6,11 @@ on:
 jobs:
   php-cs-fixer:
     name: PHP-CS-Fixer
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2