ci(tools): update cachix/install-nix-action digest to fd24c48 (#80)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/flake.yml

@@ -23,7 +23,7 @@ jobs:
 
       - name: Install nix
         id: nix
-        uses: cachix/install-nix-action@7ab6e7fd29da88e74b1e314a4ae9ac6b5cda3801 # v31
+        uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31
 
       - name: Update flake
         id: flake