For bootstrapping bump nix versions in nix install github action

Author: turion

.github/actions/nix-common-setup/action.yml

@@ -8,11 +8,11 @@ runs:
   steps:
 
     - name: Installing Nix
-      uses: cachix/install-nix-action@v22
+      uses: cachix/install-nix-action@v30
       with:
         nix_path: nixpkgs=channel:nixos-unstable
 
-    - uses: cachix/cachix-action@v12
+    - uses: cachix/cachix-action@v14
       with:
         name: tweag-monad-bayes
         authToken: "${{ inputs.CACHIX_AUTH_TOKEN }}"