build(deps): Bump DeterminateSystems/flake-checker-action from 5 to 7

Bumps [DeterminateSystems/flake-checker-action](https://github.com/determinatesystems/flake-checker-action) from 5 to 7.
- [Release notes](https://github.com/determinatesystems/flake-checker-action/releases)
- [Commits](DeterminateSystems/flake-checker-action@v5...v7)

---
updated-dependencies:
- dependency-name: DeterminateSystems/flake-checker-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/check.yml

@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: DeterminateSystems/nix-installer-action@v10
       - uses: DeterminateSystems/magic-nix-cache-action@v4
-      - uses: DeterminateSystems/flake-checker-action@v5
+      - uses: DeterminateSystems/flake-checker-action@v7
 
       - name: Check nix file formatting ❄️
         run: 'nix fmt . -- --check'