Bump actions/cache from 3 to 4 (#14)

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

Author: dependabot[bot]

.github/workflows/build.yaml

@@ -29,7 +29,7 @@ jobs:
 
       - name: "Load cached poetry installation @ ${{ matrix.python-version }}"
         id: cached-poetry
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.local
           key: poetry-0
@@ -52,7 +52,7 @@ jobs:
 
       - name: "Load cached venv @ ${{ matrix.python-version }}"
         id: cached-pip-wheels
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .venv/
           key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}

.github/workflows/coverage_and_lint.yaml

@@ -26,7 +26,7 @@ jobs:
 
       - name: "Load cached poetry installation @ ${{ matrix.python-version }}"
         id: cached-poetry
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.local
           key: poetry-0
@@ -49,7 +49,7 @@ jobs:
 
       - name: "Load cached venv @ ${{ matrix.python-version }}"
         id: cached-pip-wheels
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.venv/
           key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}