Bump rgain3 from 1.1.0 to 1.1.1 in /analyzer (#1411)

Bumps [rgain3](https://github.com/chaudum/rgain) from 1.1.0 to 1.1.1.
- [Release notes](https://github.com/chaudum/rgain/releases)
- [Changelog](https://github.com/chaudum/rgain3/blob/1.1.1/CHANGES.md)
- [Commits](https://github.com/chaudum/rgain/compare/1.1...1.1.1)

---
updated-dependencies:
- dependency-name: rgain3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

analyzer/setup.py

@@ -29,7 +29,7 @@ setup(
         "pika>=1.0.0",
         "file-magic",
         "requests>=2.7.0",
-        "rgain3==1.1.0",
+        "rgain3==1.1.1",
         "PyGObject>=3.34.0",
         # If this version is changed, it needs changing in the install script too
         "pycairo==1.19.1",