GH Actions: various workflow tweaks

.github/workflows/check-cs.yml

@@ -7,6 +7,8 @@ on:
   pull_request:
     branches:
       - "*"
+  # Allow manually triggering the workflow.
+  workflow_dispatch:
 
 jobs:
   fix-style:
@@ -25,11 +27,14 @@ jobs:
       with:
         php-version: 7.4
         coverage: none
-        tools: composer
+        tools: composer, cs2pr
 
     - name: Install dependencies
       run: |
         composer update --prefer-dist --no-suggest --no-progress
 
     - name: Check Code Style
-      run: vendor/bin/phpcs
+      run: vendor/bin/phpcs --report-full --report-checkstyle=./phpcs-report.xml
+
+    - name: Show PHPCS results in PR
+      run: cs2pr ./phpcs-report.xml

.github/workflows/run-tests.yml

@@ -9,6 +9,8 @@ on:
       - "*"
   schedule:
   - cron: '0 0 * * *'
+  # Allow manually triggering the workflow.
+  workflow_dispatch:
 
 jobs:
   php-tests:
@@ -19,10 +21,17 @@ jobs:
 
     strategy:
       matrix:
-        php: [8.x, 7.4, 7.3]
+        php: ['8.0', '7.4', '7.3']
         dependency-version: [prefer-lowest, prefer-stable]
+        experimental: [false]
+
+        include:
+          - php: '8.1'
+            dependency-version: 'prefer-stable'
+            experimental: true
 
     name: P${{ matrix.php }} - ${{ matrix.dependency-version }}
+    continue-on-error: ${{ matrix.experimental }}
 
     steps:
     - name: Checkout code
@@ -35,9 +44,15 @@ jobs:
         coverage: none
         tools: composer
 
-    - name: Install dependencies
+    - name: Install dependencies - normal
+      if: ${{ matrix.php < 8.1 }}
       run: |
         composer update --${{ matrix.dependency-version }} --prefer-dist --no-progress
 
+    - name: Install dependencies - ignore platform reqs
+      if: ${{ matrix.php >= 8.1 }}
+      run: |
+        composer update --${{ matrix.dependency-version }} --prefer-dist --no-progress --ignore-platform-reqs
+
     - name: Execute Unit Tests
       run: vendor/bin/phpunit