Bump flask-migrate from 2.1.1 to 4.1.0 (#540)

Bumps [flask-migrate](https://github.com/miguelgrinberg/flask-migrate) from 2.1.1 to 4.1.0.
- [Release notes](https://github.com/miguelgrinberg/flask-migrate/releases)
- [Changelog](https://github.com/miguelgrinberg/Flask-Migrate/blob/main/CHANGES.md)
- [Commits](miguelgrinberg/Flask-Migrate@v2.1.1...v4.1.0)

---
updated-dependencies:
- dependency-name: flask-migrate
  dependency-version: 4.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements.in

@@ -7,7 +7,7 @@ click~=8.3.1
 csh_ldap>=2.5.3
 ddtrace~=4.6.4
 Flask~=3.1.0
-Flask-Migrate~=2.1.1
+Flask-Migrate~=4.1.0
 Flask-Gzip~=0.2
 Flask-pyoidc~=3.14.3
 Flask-SQLAlchemy~=3.1.1

requirements.txt

@@ -67,7 +67,7 @@ flask==3.1.3
     #   sentry-sdk
 flask-gzip==0.2
     # via -r requirements.in
-flask-migrate==2.1.1
+flask-migrate==4.1.0
     # via -r requirements.in
 flask-pyoidc==3.14.3
     # via -r requirements.in