[roll] Roll fuchsia [build] Add exec_script() inputs as dependencies

Per
https://gn.googlesource.com/gn/+/main/docs/reference.md#buildfile-functions-exec_script_synchronously-run-a-script-and-return-the-output_back-to-top-arguments,
files that a script uses must be passed in `exec_script()`'s
`dependencies` parameter so that the GN generation will re-run if they
change.

Previously, running `fx build` after modifying text in
`//sdk/version_history.json` would rebuild affected files but not
regenerate the build files. GN needs to be reprocessed because GN
variables are generated from the JSON file.

Make similar changes to some other uses of `exec_script()`, and update
and add references to https://fxbug.dev/42141201.

Original-Bug: 325448727
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1150973
Original-Revision: 8ec44c1d2e7bf1225e4164c3eb636ce91d97cb21
GitOrigin-RevId: a012804baf16f721b1144b7d1baa70fc84222076
Change-Id: If22ad9d07d81c5a6a0153550f6532e2f6a315a4b

Author: David Dorwin

stem

@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="866b6fb6b4fa8f6b2f69ac10d144fab03d0da8af"/>
+             revision="8ec44c1d2e7bf1225e4164c3eb636ce91d97cb21"/>
   </projects>
   <hooks>
     <hook name="install-environment"