Fix file mode passing for regular deployments (#214)

Commit bbf1b30c4d broke file modes
for regular deployments as file mode isn't retrieved anymore.

lib/index.js

@@ -128,18 +128,24 @@ module.exports = class Now extends EventEmitter {
       // Flatten the array to contain files to sync where each nested input
       // array has a group of files with the same sha but different path
       const files = await Promise.all(Array.prototype.concat.apply([], await Promise.all((Array.from(this._files)).map(async ([sha, {data, names}]) => {
+        const statFn = followSymlinks ? stat : lstat
         return await names.map(async name => {
           let mode
 
+          const getMode = async () => {
+            const st = await statFn(name)
+            return st.mode
+          }
+
           if (this._static) {
             if (toRelative(name, this._path) === 'package.json') {
               mode = 33261
             } else {
-              const st = await (followSymlinks ? stat(name) : lstat(name))
-              mode = st.mode
-
+              mode = await getMode()
               name = this.pathInsideContent(name)
             }
+          } else {
+            mode = await getMode()
           }
 
           return {