chore(deps-dev): bump the flit group across 1 directory with 2 updates

Bumps the flit group with 2 updates in the / directory: [flit-core](https://github.com/pypa/flit) and [flit](https://github.com/pypa/flit).


Updates `flit-core` from 3.12.0 to 4.1.0
- [Changelog](https://github.com/pypa/flit/blob/main/doc/history.rst)
- [Commits](pypa/flit@3.12.0...4.1.0)

Updates `flit` from 3.12.0 to 4.1.0
- [Changelog](https://github.com/pypa/flit/blob/main/doc/history.rst)
- [Commits](pypa/flit@3.12.0...4.1.0)

---
updated-dependencies:
- dependency-name: flit
  dependency-version: 4.1.0
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: flit
- dependency-name: flit-core
  dependency-version: 4.1.0
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: flit
...

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

Author: dependabot[bot]

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["flit_core >=3.2,<4"]
+requires = ["flit_core >=3.2,<5"]
 build-backend = "flit_core.buildapi"
 
 [project]

requirements-dev.txt

@@ -17,8 +17,8 @@ cryptography==48.0.1
 Deprecated==1.3.1
 dill==0.4.1
 docutils==0.23
-flit==3.12.0
-flit_core==3.12.0
+flit==4.1.0
+flit_core==4.1.0
 frozenlist==1.8.0
 h11==0.16.0
 h2==4.3.0