test_e2e.sh,test_e2e_local.sh: bump timeout to 20m

Author: estroz

test_e2e.sh

@@ -39,4 +39,4 @@ function cleanup() {
 
 trap cleanup EXIT
 go test ./test/e2e/v2
-go test ./test/e2e/v3 -timeout 15m
+go test ./test/e2e/v3 -timeout 20m

test_e2e_local.sh

@@ -50,4 +50,4 @@ fi
 
 # when changing these commands, make sure to keep in sync with ./test_e2e.sh
 go test ./test/e2e/v2 -v -ginkgo.v
-go test ./test/e2e/v3 -v -ginkgo.v -timeout 15m
+go test ./test/e2e/v3 -v -ginkgo.v -timeout 20m