feat: Drop support for Python 3.7

[edgarrmondragon]

Description

Drops support for Python 3.7 and updates the necessary dependencies.

Checklist

• Add test cases to all the changes you introduce
• Run ./scripts/format and ./scripts/test locally to ensure this change passes linter check and test
• Test the changes on the local machine manually
• Update the documentation for the changes

Expected behavior

Steps to Test This Pull Request

Additional context

• Closes Drop support for Python 3.7 #857

[codecov]

Codecov Report

Patch coverage is 97.68% of modified lines.

Files Changed	Coverage
commitizen/cli.py	ø
commitizen/git.py	33.33%
commitizen/providers/scm_provider.py	91.17%
commitizen/__version__.py	100.00%
commitizen/commands/bump.py	100.00%
commitizen/commands/commit.py	100.00%
commitizen/config/json_config.py	100.00%
commitizen/config/toml_config.py	100.00%
commitizen/config/yaml_config.py	100.00%
commitizen/defaults.py	100.00%
... and 8 more

📢 Thoughts on this report? Let us know!.

[Lee-W]

As 3.7 has reached end-of-life, I think it makes sense to remove it. @woile I'm going to merge it these days. Let me know if you have any thought