Bump aiocron from 1.8 to 2.1

Bumps [aiocron](https://github.com/gawel/aiocron) from 1.8 to 2.1.
- [Changelog](https://github.com/gawel/aiocron/blob/master/CHANGES.rst)
- [Commits](gawel/aiocron@1.8...2.1)

---
updated-dependencies:
- dependency-name: aiocron
  dependency-version: '2.1'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Pipfile

@@ -4,7 +4,7 @@ url = "https://pypi.org/simple"
 verify_ssl = true
 
 [packages]
-aiocron = "==1.8"
+aiocron = "==2.1"
 bidict = "==0.23.1"
 black = "==25.1.0"
 dateparser = "1.2.0"