Minor edits to the workflow - updated some version numbers and added spaces in the workflow file to make it a bit more readable

Running-in-GitHub-Actions.md

@@ -17,11 +17,12 @@ concurrency:
 
 jobs:
   phpcs:
-    name: PHPCS
-    runs-on: ubuntu-20.04
+    name: PHPCS check
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
+
       - name: Setup PHP
         uses: "shivammathur/setup-php@v2"
         with:
@@ -29,11 +30,14 @@ jobs:
           ini-values: "memory_limit=1G"
           coverage: none
           tools: cs2pr
+
       - name: Install Composer dependencies
         uses: "ramsey/composer-install@v2"
+
       - name: Run PHPCS checks
         continue-on-error: true
         run: vendor/bin/phpcs --report-full --report-checkstyle=./phpcs-report.xml
+        
       - name: Show PHPCS results in PR
         run: cs2pr ./phpcs-report.xml
 ```