[roll] Roll fuchsia [bug] Update reference from obsolete to active

Update TODOs to link from the obsolete https://fxbug.dev/42177573 to the
active https://fxbug.dev/296283299 for optional capability discovery.

While modifying these, change the formatting to use the
`TODO(https://fxbug.dev/XXX): DESCRIPTION` format.

Original-Bug: 296283299
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1190174
Original-Revision: 8e80f1338f1b9df33f85d929c83984893a2258fd
GitOrigin-RevId: 8b9d4f93aa95cfcbfea9fbcb2eb542fb2bcbfd7e
Change-Id: I70333ceb70cf8c4a1cd08fc35035189e9cc2266d

Author: Antonio Linhart

stem

@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="2c32eaec4fa6aaec39f4b49605f800da0bcb1d89"/>
+             revision="8e80f1338f1b9df33f85d929c83984893a2258fd"/>
   </projects>
   <hooks>
     <hook name="install-environment"