chore(deps): bump DeterminateSystems/update-flake-lock from 27 to 28

Bumps [DeterminateSystems/update-flake-lock](https://github.com/determinatesystems/update-flake-lock) from 27 to 28.
- [Release notes](https://github.com/determinatesystems/update-flake-lock/releases)
- [Commits](DeterminateSystems/update-flake-lock@v27...v28)

---
updated-dependencies:
- dependency-name: DeterminateSystems/update-flake-lock
  dependency-version: '28'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/update_nix.yml

@@ -21,6 +21,6 @@ jobs:
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
 
       - name: Update flake.lock
-        uses: DeterminateSystems/update-flake-lock@v27
+        uses: DeterminateSystems/update-flake-lock@v28
         with:
           pr-title: "Weekly PR to bump flake.nix" # Title of PR to be created