chore: Specify shell as bash for test commands in CI workflows

Author: alvarorichard

.github/workflows/ci.yml

@@ -59,4 +59,5 @@ jobs:
         run: golangci-lint run --timeout=5m ./...
 
       - name: Run tests
+        shell: bash
         run: go test -v -coverprofile=coverage.out ./...

.github/workflows/coverage.yml

@@ -54,6 +54,7 @@ jobs:
         run: go get -v -t -d ./...
 
       - name: Run tests with coverage
+        shell: bash
         run: go test -v -coverprofile=coverage.out ./...
 
       - name: Upload coverage to Codecov