Merge pull request #1655 from o1-labs/dependabot/github_actions/DeterminateSystems/nix-installer-action-21

Bump DeterminateSystems/nix-installer-action from 20 to 21

Author: dannywillems

.github/workflows/test-docs-scripts.yaml

@@ -139,7 +139,7 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@v20
+        uses: DeterminateSystems/nix-installer-action@v21
 
       - name: Setup Nix Cache
         uses: DeterminateSystems/magic-nix-cache-action@v13