chore(deps): bump devenv from `cb344e4` to `28668b6` (#21876)

Bumps [devenv](https://github.com/cachix/devenv) from `cb344e4` to `28668b6`.
- [Release notes](https://github.com/cachix/devenv/releases)
- [Commits](cb344e4a5a...28668b6851)

---
updated-dependencies:
- dependency-name: devenv
  dependency-version: 28668b6851e4e649aadd329527059344d14561cf
  dependency-type: direct:production
...

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

flake.lock

@@ -164,11 +164,11 @@
         "rust-overlay": "rust-overlay"
       },
       "locked": {
-        "lastModified": 1777372895,
-        "narHash": "sha256-PGesjpeDbEPigEP7tdRw8Sm0mmOmonUdOOthBY+nhJA=",
+        "lastModified": 1777498918,
+        "narHash": "sha256-SBx9JMs4OGrhADeU6qlfTZzJ7Dp/RuVgXErECF0adUo=",
         "owner": "cachix",
         "repo": "devenv",
-        "rev": "cb344e4a5ab9241ae49739352c24268d5f8be13b",
+        "rev": "28668b6851e4e649aadd329527059344d14561cf",
         "type": "github"
       },
       "original": {