Update DeterminateSystems/nix-installer-action digest to 490cfee (#86)

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

Author: renovate[bot]

.github/workflows/checks.yml

@@ -13,7 +13,7 @@ jobs:
     - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       with:
         persist-credentials: false
-    - uses: DeterminateSystems/nix-installer-action@ef8a148080ab6020fd15196c2084a2eea5ff2d25 # main
+    - uses: DeterminateSystems/nix-installer-action@490cfee336d5220c80b0c5cab117b4a26fb3898a # main
     - uses: DeterminateSystems/magic-nix-cache-action@1828eb4e5414b8dfe36daae53ea3e4b8c3fdec7a # main
     - uses: DeterminateSystems/flake-checker-action@2e32b6dce651e6992cc110d569e0b60746e31b48 # main
     - run: nix flake check -L