fix: update github workflow to use node>=16

GitHub workflow is giving off a warning about the node version used for
some of the actions (engineerd/setup-kind) being deprecated. This commit adds a
new action to ensure about installing a specific version of node.

Signed-off-by: Daniel Mellado <dmellado@redhat.com>

.github/e2e-tests-olm/action.yaml

@@ -22,6 +22,11 @@ runs:
         check-latest: true
         cache: true
 
+    - name: Set non-deprecated version of node
+      uses: actions/setup-node@v2
+      with:
+        node-version: '16'
+
     - uses: azure/setup-kubectl@v3
 
     - name: Start Kind