build(deps): bump groupsky/homy/dockergen (#1140)

Bumps the infrastructure group in /docker/dockergen with 1 update: [groupsky/homy/dockergen](https://github.com/nginx-proxy/docker-gen).


Updates `groupsky/homy/dockergen` from 0.15.0 to 0.16.1
- [Release notes](https://github.com/nginx-proxy/docker-gen/releases)
- [Commits](nginx-proxy/docker-gen@0.15.0...0.16.1)

---
updated-dependencies:
- dependency-name: groupsky/homy/dockergen
  dependency-version: 0.16.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: infrastructure
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docker/dockergen/Dockerfile

@@ -1 +1 @@
-FROM ghcr.io/groupsky/homy/dockergen:0.15.0
+FROM ghcr.io/groupsky/homy/dockergen:0.16.1