deps: update dependency DeterminateSystems/nix-installer to v3 (#3684)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/reproducible-builds.yml

@@ -57,7 +57,7 @@ jobs:
           chmod a+x "$HOME/.local/bin/bazel"
           echo "$HOME/.local/bin" >> "$GITHUB_PATH"
 
-          curl -fsSL -o "$HOME/.local/bin/nix-installer" https://github.com/DeterminateSystems/nix-installer/releases/download/v0.38.1/nix-installer-x86_64-linux # renovate:github-release
+          curl -fsSL -o "$HOME/.local/bin/nix-installer" https://github.com/DeterminateSystems/nix-installer/releases/download/v3.0.0/nix-installer-x86_64-linux # renovate:github-release
           nixVersion=$(cat .nixversion)
           chmod a+x "$HOME/.local/bin/nix-installer"
           "$HOME/.local/bin/nix-installer" install --no-confirm --nix-package-url "https://releases.nixos.org/nix/nix-$nixVersion/nix-$nixVersion-x86_64-linux.tar.xz"