fix: disable temporary Nix builds on aarch64-linux

Author: yvan-sraka

.github/workflows/nix-build.yml

@@ -26,8 +26,8 @@ jobs:
         include:
           - runner: blacksmith-32vcpu-ubuntu-2404	
             arch: amd64
-          - runner: blacksmith-32vcpu-ubuntu-2404-arm
-            arch: arm64
+          # - runner: blacksmith-32vcpu-ubuntu-2404-arm
+          #   arch: arm64
           - runner: macos-latest-xlarge
             arch: arm64
     runs-on: ${{ matrix.runner }}