chore(deps): update determinatesystems/nix-installer-action action to v19

Author: renovate[bot]

.github/workflows/host_ci.yml

@@ -17,7 +17,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@v17
+        uses: DeterminateSystems/nix-installer-action@v19
 
       - run: |
           : nix flake check