Fully enable `chromium.resultdb.result_sink` experiment on chromium fyi builders

Bug: 1108016
Change-Id: I16519d67523fc0f2079d836c663b2604a188cc1f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2468936Reviewed-by: Garrett Beaty <gbeaty@chromium.org>
Commit-Queue: Chan Li <chanli@chromium.org>
Cr-Commit-Position: refs/heads/master@{#816767}

infra/config/lib/ci.star

@@ -607,7 +607,7 @@ def fyi_builder(
         # TODO(crbug.com/1108016): Move this kwarg to ci.builder(), after
         # ResultSink and result_adapter is confirmed to work.
         experiments = {
-            "chromium.resultdb.result_sink": 30,
+            "chromium.resultdb.result_sink": 100,
         },
         **kwargs
     )