ci: Composite actions have to be in an actions.yaml file

Author: JDBetteridge

.github/actions/docker-build.yaml .github/actions/docker-build/actions.yaml.github/actions/docker-build.yaml renamed to .github/actions/docker-build/actions.yaml

@@ -91,14 +91,14 @@ jobs:
 
     - id: build
       name: Build docker image
-      uses: ./.github/actions/docker-build.yaml
+      uses: ./.github/actions/docker-build
       with:
         file: docker/Dockerfile.devito
         tag: devito_img
         base: devitocodes/bases:cpu-${{ matrix.arch }}
 
     - name: Test with pytest
-      uses: ./.github/actions/docker-run.yaml
+      uses: ./.github/actions/docker-run
       with:
         id: ${{ steps.build.outputs.unique }}
         env: |
@@ -108,7 +108,7 @@ jobs:
         command: "pytest tests/test_mpi.py"
 
     - name: Test acoustic example with MPI
-      uses: ./.github/actions/docker-run.yaml
+      uses: ./.github/actions/docker-run
       with:
         id: ${{ steps.build.outputs.unique }}
         args: ${{ matrix.mpiflag }}
@@ -119,7 +119,7 @@ jobs:
         command: "mpiexec -n 2 pytest examples/seismic/acoustic"
 
     - name: Test tti example with MPI
-      uses: ./.github/actions/docker-run.yaml
+      uses: ./.github/actions/docker-run
       with:
         # --name examplerun
         id: ${{ steps.build.outputs.unique }}
@@ -131,7 +131,7 @@ jobs:
         command: "mpiexec -n 2 pytest examples/seismic/tti"
 
     - name: Cleanup docker image
-      uses: ./.github/actions/docker-clean.yaml
+      uses: ./.github/actions/docker-clean
       with:
         id: ${{ steps.build.outputs.unique }}
         tag: devito_img