Install nan

Author: jamesbvaughan

.github/workflows/prebuild.yaml

@@ -46,7 +46,7 @@ jobs:
 
       - name: Build
         run: |
-          npm install -g node-gyp
+          npm install -g node-gyp nan
           npm install --ignore-scripts
           . prebuild/macOS/preinstall.sh
           cp prebuild/macOS/binding.gyp binding.gyp