Update setup Earthly in unit test workflow

Signed-off-by: Teoh Suh Haw <suh.haw.teoh@intel.com>

Author: elvin03

.github/workflows/unit-test-and-coverage-gate.yml

@@ -36,7 +36,8 @@ jobs:
           ref: ${{ inputs.ref || github.event.pull_request.head.sha || github.sha }}
 
       - name: Setup Earthly
-        uses: earthly/actions/setup-earthly@v1
+        #uses: earthly/actions/setup-earthly@v1
+        uses: earthly/actions-setup@ee3f29b7334bcd54efbe129d3321f600ee0c8567 #v1.0.0
         with:
           version: "latest"