Merge pull request #708 from Warwick-Plasma/keith/workflow

Remove broken github workflows

Author: keithbennett

.github/workflows/auto_pr.yml

@@ -59,7 +59,7 @@ jobs:
                mpich
 
     - name: Checkout code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         submodules: recursive
         fetch-depth: 0