chore: nix-build-uncached problem is resolved, building in nix-2.…

…15 (#3953)

See: https://github.com/Mic92/nix-build-uncached/releases

~~But our build doesn't pick it up yet :-(~~

`nixpkgs-23.05` has it :-)

.github/workflows/release.yml

@@ -49,8 +49,6 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - uses: cachix/install-nix-action@v22
-      with:
-        install_url: https://releases.nixos.org/nix/nix-2.13.3/install
     - uses: cachix/cachix-action@v12
       if: startsWith(github.ref, 'refs/heads/')
       with:
@@ -77,8 +75,6 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - uses: cachix/install-nix-action@v22
-      with:
-        install_url: https://releases.nixos.org/nix/nix-2.13.3/install
     - uses: cachix/cachix-action@v12
       with:
         name: ic-hs-test

.github/workflows/test.yml

@@ -18,8 +18,6 @@ jobs:
         # fetch PR commit, not predicted merge commit
         ref: ${{ github.event.pull_request.head.sha }}
     - uses: cachix/install-nix-action@v22
-      with:
-        install_url: https://releases.nixos.org/nix/nix-2.13.3/install
 
     # We are using the ic-hs-test cachix cache that is also used by
     # dfinity/ic-hs. This is partly laziness (on need to set up a separate
@@ -91,8 +89,6 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - uses: cachix/install-nix-action@v22
-      with:
-        install_url: https://releases.nixos.org/nix/nix-2.13.3/install
     - uses: cachix/cachix-action@v12
       with:
         name: ic-hs-test
@@ -115,8 +111,6 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - uses: cachix/install-nix-action@v22
-      with:
-        install_url: https://releases.nixos.org/nix/nix-2.13.3/install
     - uses: cachix/cachix-action@v12
       with:
         name: ic-hs-test

.github/workflows/update-hash.yml

@@ -18,7 +18,6 @@ jobs:
         token: ${{ secrets.NIV_UPDATER_TOKEN }}
     - uses: cachix/install-nix-action@v22
       with:
-        install_url: https://releases.nixos.org/nix/nix-2.13.3/install
         nix_path: nixpkgs=channel:nixos-22.11
     - uses: cachix/cachix-action@v12
       with: