integ-test: increase the timeout (#102)

# Description
The integration tests are consistently failing and seem to need more
time to run, so we increase the timout.

Author: sauterp

.github/workflows/integ-tests.yml

@@ -41,7 +41,7 @@ jobs:
         run: |
           cd internal/integ/ && go test \
             -v \
-            -timeout 20m \
+            -timeout 30m \
             --create-cluster \
             --create-csi-secret \
             --tear-down-csi \