Bump cocoapods-downloader from 1.5.1 to 1.6.3 in /samples-old/CameraDemo (#682)

Bumps [cocoapods-downloader](https://github.com/CocoaPods/cocoapods-downloader) from 1.5.1 to 1.6.3.
- [Release notes](https://github.com/CocoaPods/cocoapods-downloader/releases)
- [Changelog](https://github.com/CocoaPods/cocoapods-downloader/blob/master/CHANGELOG.md)
- [Commits](https://github.com/CocoaPods/cocoapods-downloader/compare/1.5.1...1.6.3)

---
updated-dependencies:
- dependency-name: cocoapods-downloader
  dependency-type: indirect
...

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samples-old/CameraDemo/Gemfile.lock

@@ -45,7 +45,7 @@ GEM
       public_suffix (~> 4.0)
       typhoeus (~> 1.0)
     cocoapods-deintegrate (1.0.5)
-    cocoapods-downloader (1.5.1)
+    cocoapods-downloader (1.6.3)
     cocoapods-plugins (1.0.0)
       nap
     cocoapods-search (1.0.1)