Update test.yml

Author: vmalaviya-splunk

.github/workflows/test.yml

@@ -43,7 +43,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Run docker-compose
-        run: docker-compose up -d
+        run: SPLUNK_VERSION=${{matrix.splunk-version}} docker-compose up -d
 
       - name: Setup Python
         uses: actions/setup-python@v2