[KOGITO-1286] - Upgrade Git Hub actions/checkout@v1 to v2 (#103)

Signed-off-by: spolti <[email protected]>

Author: spolti

.github/workflows/validate-imagestreams.yml

@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - name: Download openshift-validator-tool
         run: |
           wget https://github.com/jboss-container-images/jboss-kie-modules/raw/master/tools/openshift-template-validator/openshift-template-validator-linux-amd64