Fix shell selection, use composite

Signed-off-by: Aaron Chong <[email protected]>

.github/actions/build-and-test/action.yaml

@@ -13,15 +13,18 @@ inputs:
     default: "OFF"
 
 runs:
+  using: composite
   steps:
     - name: install dependencies
       run: |
         sudo apt update && sudo apt install python3-pip -y
         pip3 install eclipse-zenoh==${{ inputs.zenoh-version }} pycdr2 --break-system-packages
+      shell: bash
 
     - uses: ros-tooling/[email protected]
       with:
         required-ros-distributions: ${{ inputs.ros-distribution }}
+      shell: bash
 
     - name: build and test
       uses: ros-tooling/[email protected]
@@ -36,3 +39,4 @@ runs:
               ]
             }
           }
+      shell: bash