net-im/telegram-desktop: update to 6.0.2 release (+)

What's new:

v 6.0.0

• Public Post Search.
• Story Albums.
• Gift Collections.
• Profile Rating.

v 6.0.1

• Fix crashing on Windows 7.

v 6.0.2

• Improve design of profile stars rating.

Read more in blog: https://www.telegram.org/blog/post-search-story-albums-and-more