Specify right repository (#430)

Since this workflow is reusable and can be called my multiple repos and default value is ${{ github.repository }}. This poses a problem as the action will check out the calling repository, which is not what we want if the calling repo is e.g. the openfoam-adapter.

.github/workflows/run_testsuite_workflow.yml

@@ -46,6 +46,7 @@ jobs:
     - name: Check out Tutorials for systest
       uses: actions/checkout@v4
       with:
+        repository: precice/tutorials
         ref: ${{ inputs.systests_branch }}
         lfs: true
         fetch-depth: 0
@@ -69,4 +70,4 @@ jobs:
           runs/*
     - name: tidy up the docker
       run: |
-        docker network prune -f
+        docker network prune -f