Bump flake.lock and related dependencies (#397)

* flake.lock: Update

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/2fb006b87f04c4d3bdf08cfdbc7fab9c13d94a15?narHash=sha256-kJ8lIZsiPOmbkJypG%2BB5sReDXSD1KGu2VEPNqhRa/ew%3D' (2025-10-31)
  → 'github:NixOS/nixpkgs/b6a8526db03f735b89dd5ff348f53f752e7ddc8e?narHash=sha256-rXXuz51Bq7DHBlfIjN7jO8Bu3du5TV%2B3DSADBX7/9YQ%3D' (2025-11-08)

* Sync CI dependencies with nixpkgs

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: selfup-runner[bot]

.github/workflows/lint.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v5
-      - uses: crate-ci/typos@v1.38.1 # selfup {"extract":"\\d\\.\\d+\\.\\d+","replacer":["bash","-c","typos --version | cut -d ' ' -f 2"]}
+      - uses: crate-ci/typos@v1.39.0 # selfup {"extract":"\\d\\.\\d+\\.\\d+","replacer":["bash","-c","typos --version | cut -d ' ' -f 2"]}
         with:
           files: |
             .