ci(deps): bump actions/cache from 3 to 4 (Pycord-Development#2323)

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

Author: dependabot[bot]

.github/workflows/lint.yml

@@ -21,7 +21,7 @@ jobs:
           pip install -r requirements/dev.txt
       - name: Setup cache
         id: cache-pylint
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .pylint.d
           key: pylint
@@ -43,7 +43,7 @@ jobs:
           pip install -r requirements/dev.txt
       - name: Setup cache
         id: cache-mypy
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .mypy_cache
           key: mypy

.github/workflows/test.yml

@@ -35,7 +35,7 @@ jobs:
           pip install -r requirements/dev.txt
       - name: Setup cache
         id: cache-pytest
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .pytest_cache
           key: ${{ matrix.os }}-${{ matrix.python-version }}-pytest