Bump DeterminateSystems/flake-checker-action from 5 to 12

Bumps [DeterminateSystems/flake-checker-action](https://github.com/determinatesystems/flake-checker-action) from 5 to 12.
- [Release notes](https://github.com/determinatesystems/flake-checker-action/releases)
- [Commits](DeterminateSystems/flake-checker-action@4b90f9f...3164002)

---
updated-dependencies:
- dependency-name: DeterminateSystems/flake-checker-action
  dependency-version: '12'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/check-flake.yml

@@ -22,7 +22,7 @@ jobs:
         with:
           use-flakehub: false
       - name: Check Nix flake inputs
-        uses: DeterminateSystems/flake-checker-action@4b90f9fc724969ff153fe1803460917c84fe00a3 # v5
+        uses: DeterminateSystems/flake-checker-action@3164002371bc90729c68af0e24d5aacf20d7c9f6 # v12
         with:
           fail-mode: true
           send-statistics: false