Add console.log to notarize.js

Otherwise the output during a build would just say this:

> skipped macOS notarization  reason=`notarize` options were set explicitly `false`

which could give the wrong impression that notarization was not done at all.

web/packages/teleterm/notarize.js

@@ -23,6 +23,8 @@ exports.default = async function notarizing(context) {
   const appName = context.packager.appInfo.productFilename;
   const appBundleId = context.packager.appInfo.macBundleIdentifier;
 
+  console.log('notarize.js: Notarizing in progress.');
+
   return await notarize({
     appBundleId,
     appPath: `${appOutDir}/${appName}.app`,