Update frequenz-client-reporting requirement

Updates the requirements on [frequenz-client-reporting](https://github.com/frequenz-floss/frequenz-client-reporting-python) to permit the latest version.
- [Release notes](https://github.com/frequenz-floss/frequenz-client-reporting-python/releases)
- [Changelog](https://github.com/frequenz-floss/frequenz-client-reporting-python/blob/v0.x.x/RELEASE_NOTES.md)
- [Commits](frequenz-floss/frequenz-client-reporting-python@v0.18.0...v0.20.0)

---
updated-dependencies:
- dependency-name: frequenz-client-reporting
  dependency-version: 0.20.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pyproject.toml

@@ -36,7 +36,7 @@ classifiers = [
 requires-python = ">= 3.11, < 4"
 dependencies = [
   "typing-extensions >= 4.12.0, < 5",
-  "frequenz-client-reporting >= 0.18.0, < 0.20.0",
+  "frequenz-client-reporting >= 0.18.0, < 0.21.0",
   "frequenz-client-common >= 0.3.0, < 0.4",
 ]
 dynamic = ["version"]