Add prebuild Electron for arm64 (#319)

* Add prebuild Electron for arm64

* Add prebuild arm64 to CI

Author: dennisameling

.travis.yml

@@ -49,5 +49,5 @@ script:
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then npm test; fi
   - npm run prebuild-node
   - npm run prebuild-electron
-  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then docker build -t node-keytar/i386 docker/i386 && docker run --rm -v ${PWD}:/project node-keytar/i386 /bin/bash -c "cd /project && npm run prebuild-node-ia32 && npm run prebuild-electron-ia32"; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then docker build -t node-keytar/i386 docker/i386 && docker run --rm -v ${PWD}:/project node-keytar/i386 /bin/bash -c "cd /project && npm run prebuild-node-ia32 && npm run prebuild-electron-ia32 && npm run prebuild-electron-arm64"; fi
   - if [[ -n "$TRAVIS_TAG" ]]; then npm run upload; fi

appveyor.yml

@@ -26,6 +26,7 @@ build_script:
   - npm run prebuild-node-ia32
   - npm run prebuild-electron
   - npm run prebuild-electron-ia32
+  - npm run prebuild-electron-arm64
   - if defined APPVEYOR_REPO_TAG_NAME (npm run upload)
 
 test: off

package.json

@@ -37,6 +37,7 @@
     "prebuild-node": "prebuild -t 8.9.0 -t 9.4.0 -t 10.11.0 -t 11.9.0 -t 12.0.0 -t 13.0.0 -t 14.0.0 --strip",
     "prebuild-node-ia32": "prebuild -t 8.9.0 -t 9.4.0 -a ia32 --strip",
     "prebuild-electron": "prebuild -t 7.0.0 -t 8.0.0 -t 9.0.0 -t 10.0.0 -r electron --strip",
+    "prebuild-electron-arm64": "prebuild -t 7.0.0 -t 8.0.0 -t 9.0.0 -t 10.0.0 -r electron -a arm64 --strip",
     "prebuild-electron-ia32": "prebuild -t 7.0.0 -t 8.0.0 -t 9.0.0 -t 10.0.0 -r electron -a ia32 --strip",
     "upload": "node ./script/upload.js",
     "postpublish": "git push --follow-tags"