Merge pull request #433 from typelevel/dependabot/github_actions/cachix/install-nix-action-20

Bump cachix/install-nix-action from 15 to 20

Author: rossabaker

.github/workflows/cache.yml

@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@v3.4.0
 
       - name: "Install Nix️"
-        uses: cachix/install-nix-action@v15
+        uses: cachix/install-nix-action@v20
 
       - name: "Install Cachix️"
         uses: cachix/cachix-action@v10

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v3.4.0
 
       - name: "Install Nix️"
-        uses: cachix/install-nix-action@v16
+        uses: cachix/install-nix-action@v20
 
       - name: "Install Cachix️"
         uses: cachix/cachix-action@v10