Update sqlalchemy requirement from ~=2.0.7 to ~=2.0.20

Updates the requirements on [sqlalchemy](https://github.com/sqlalchemy/sqlalchemy) to permit the latest version.
- [Release notes](https://github.com/sqlalchemy/sqlalchemy/releases)
- [Changelog](https://github.com/sqlalchemy/sqlalchemy/blob/main/CHANGES.rst)
- [Commits](https://github.com/sqlalchemy/sqlalchemy/commits)

---
updated-dependencies:
- dependency-name: sqlalchemy
  dependency-type: direct:production
...

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

requirements.txt

@@ -3,6 +3,6 @@ pre-commit ~= 3.2.1
 pycodestyle ~= 2.10.0
 requests ~= 2.28.1
 setuptools ~= 67.6.0
-sqlalchemy ~= 2.0.7
+sqlalchemy ~= 2.0.20
 valorant-match-history @ git+https://github.com/make-or-break/valorant-match-history#6199f31
 valorant-utils @ git+https://github.com/make-or-break/valorant-utils#39e3fcc