ci: build macos on pull request (#1854)

apps/electron/forge.config.js

@@ -5,13 +5,15 @@ module.exports = {
     osxSign: {
       identity: 'Developer ID Application: TOEVERYTHING PTE. LTD.',
       'hardened-runtime': true,
-    }, // object must exist even if empty
-    osxNotarize: {
-      tool: 'notarytool',
-      appleId: process.env.APPLE_ID,
-      appleIdPassword: process.env.APPLE_PASSWORD,
-      teamId: process.env.APPLE_TEAM_ID,
     },
+    osxNotarize: process.env.APPLE_ID
+      ? {
+          tool: 'notarytool',
+          appleId: process.env.APPLE_ID,
+          appleIdPassword: process.env.APPLE_PASSWORD,
+          teamId: process.env.APPLE_TEAM_ID,
+        }
+      : undefined,
   },
   makers: [
     {