chore(deps): bump devenv from 4ec8cee to 15f44b8 (#22248)

Bumps [devenv](https://github.com/cachix/devenv) from `4ec8cee` to `15f44b8`.
- [Release notes](https://github.com/cachix/devenv/releases)
- [Commits](https://github.com/cachix/devenv/compare/4ec8cee2f960a44dff75b70fe7ab9b2428bc2c6e...15f44b869b9c99b0bb104b7d5a04d9faba540a5e)

---
updated-dependencies:
- dependency-name: devenv
  dependency-version: 15f44b869b9c99b0bb104b7d5a04d9faba540a5e
  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

@@ -64,11 +64,11 @@
         "rust-overlay": "rust-overlay"
       },
       "locked": {
-        "lastModified": 1781041252,
-        "narHash": "sha256-i25K7cJKTkVWRgMLPQt2UI7E9TxyepRfkGnTT0LfxPM=",
+        "lastModified": 1781147004,
+        "narHash": "sha256-/s2Fk3BDmdIIwSWZc04fLrCK86chpxpeMRgHXGjzquk=",
         "owner": "cachix",
         "repo": "devenv",
-        "rev": "4ec8cee2f960a44dff75b70fe7ab9b2428bc2c6e",
+        "rev": "15f44b869b9c99b0bb104b7d5a04d9faba540a5e",
         "type": "github"
       },
       "original": {