fix: perms

Author: samrose

.github/workflows/nix-build.yml

@@ -67,6 +67,7 @@ jobs:
         run: |
           cp ./docker/nix/build_nix.sh ./build_nix.sh
           sed -i '' 's/cd workspace//g' ./build_nix.sh
+          chmod +x ./build_nix.sh
           ./build_nix.sh
         env:
           AWS_ACCESS_KEY_ID: ${{ env.AWS_ACCESS_KEY_ID }}