ngr: Fix Gradle test runner by only _conditionally_ invoking gradle wrapper
#94
| Job | Run time |
|---|---|
| 1m 38s | |
| 2m 11s | |
| 3m 49s |
gradle wrapper
#94
| Job | Run time |
|---|---|
| 1m 38s | |
| 2m 11s | |
| 3m 49s |