Bump tzlocal from 2.1 to 3.0 (#2154)

Bumps [tzlocal](https://github.com/regebro/tzlocal) from 2.1 to 3.0.
- [Release notes](https://github.com/regebro/tzlocal/releases)
- [Changelog](https://github.com/regebro/tzlocal/blob/master/CHANGES.txt)
- [Commits](https://github.com/regebro/tzlocal/compare/2.1...3.0)

---
updated-dependencies:
- dependency-name: tzlocal
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

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

requirements.txt

@@ -4,7 +4,7 @@ paho-mqtt==1.5.1
 colorama==0.4.4
 tornado==6.1
 protobuf==3.17.3
-tzlocal==2.1
+tzlocal==3.0
 pytz==2021.1
 pyserial==3.5
 ifaddr==0.1.7