⬆️ Bump actions/cache from 3 to 4

Bumps [actions/cache](https://github.com/actions/cache) from 3 to 4.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v3...v4)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/python.yml

@@ -39,19 +39,19 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: ${{ matrix.pip-cache }}
           key: ${{ runner.os }}-${{ matrix.python-version }}-pip-${{ hashFiles('**/poetry.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ matrix.python-version }}-pip-
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: ${{ matrix.poetry-cache }}
           key: ${{ runner.os }}-${{ matrix.python-version }}-poetry-${{ hashFiles('**/poetry.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ matrix.python-version }}-poetry-
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: .mypy_cache
           key: ${{ runner.os }}-${{ matrix.python-version }}-mypy-${{ hashFiles('**/poetry.lock') }}