Update test.yml

Added support for manually selected branches.

Author: dmaier-redislabs

.github/workflows/test.yml

@@ -11,6 +11,8 @@ jobs:
     steps:
       - name: Git checkout
         uses: actions/checkout@v2
+        with:
+          ref: ${{ inputs.branch || github.ref_name }} 
 
       - name: Use Node.js ${{ matrix.node }}
         uses: actions/setup-node@v1