Upgrade: Bump the dependencies group with 1 update (#223)

Bumps the dependencies group with 1 update: [openttd-protocol](https://github.com/OpenTTD/py-protocol).


Updates `openttd-protocol` from 1.7.0 to 1.7.1
- [Release notes](https://github.com/OpenTTD/py-protocol/releases)
- [Commits](OpenTTD/py-protocol@v1.7.0...v1.7.1)

---
updated-dependencies:
- dependency-name: openttd-protocol
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependencies
...

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

requirements.txt

@@ -11,7 +11,7 @@ hiredis==2.3.2
 idna==3.6
 multidict==6.0.4
 openttd-helpers==1.4.0
-openttd-protocol==1.7.0
+openttd-protocol==1.7.1
 pproxy==2.7.9
 prometheus-client==0.19.0
 sentry-sdk==1.39.2