CI(deps): Update DeterminateSystems/nix-installer-action action to v17 (#5598)

Author: renovate[bot]

.github/workflows/test-nix.yml

@@ -31,7 +31,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - name: Install nix
-        uses: DeterminateSystems/nix-installer-action@e50d5f73bfe71c2dd0aa4218de8f4afa59f8f81d # v16
+        uses: DeterminateSystems/nix-installer-action@21a544727d0c62386e78b4befe52d19ad12692e3 # v17
 
       - name: Setup cachix
         uses: cachix/cachix-action@0fc020193b5a1fa3ac4575aa3a7d3aa6a35435ad # v16