PR #13963 mistakenly stopped stripping debug information from the native
executable when debug info generation is enabled resulting in both the
native executable and the corresponding `.debug` file containing the
debug information. Which also results in the native executable being
larger when `-Dquarkus.native.debug.enabled` is used:

```
$ du -hs quarkus-integration-test-main-999-SNAPSHOT-runner-nodebug
108M quarkus-integration-test-main-999-SNAPSHOT-runner-nodebug

$ du -hs quarkus-integration-test-main-999-SNAPSHOT-runner-debug
182M quarkus-integration-test-main-999-SNAPSHOT-runner-debug

$ du -hs quarkus-integration-test-main-999-SNAPSHOT-runner-debug.debug
75M quarkus-integration-test-main-999-SNAPSHOT-runner-debug.debug
```

Inspecting `quarkus-integration-test-main-999-SNAPSHOT-runner-debug` and
`quarkus-integration-test-main-999-SNAPSHOT-runner-debug` with
`readelf --debug-dump=info` we observe that both files are containing
debug information while only the latter should contain them.