Bump sqlalchemy from 1.4.29 to 1.4.46

Bumps [sqlalchemy](https://github.com/sqlalchemy/sqlalchemy) from 1.4.29 to 1.4.46.
- [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
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -51,7 +51,7 @@ pyopenssl==22.0.0
 pyproj==3.3.0
 OWSLib==0.25.0
 pycsw==2.6.1
-SQLAlchemy==1.4.29 # required by PyCSW
+SQLAlchemy==1.4.46 # required by PyCSW
 Shapely==1.8.0
 mercantile==1.2.1
 geoip2==4.5.0