Roll recipe dependencies (trivial).

This is an automated CL created by the recipe roller. This CL rolls
recipe changes from upstream projects (fuchsia) into this repository.

The build that created this CL was
https://ci.chromium.org/b/8712868993683429537

fuchsia:
https://fuchsia.googlesource.com/infra/recipes.git/+/a9eb8be4e9e112071c60c976be6d59361f28e9fe
  a9eb8be (olivernewman@google.com)
      [fuchsia] Nest skipped shard uploads

Please check the following references for more information:
- autoroller, https://chromium.googlesource.com/infra/luci/recipes-py/+/main/doc/workflow.md#autoroller
- rollback, https://chromium.googlesource.com/infra/luci/recipes-py/+/main/doc/workflow.md#rollback
- cross-repo dependencies, https://chromium.googlesource.com/infra/luci/recipes-py/+/main/doc/cross_repo.md

Use https://goo.gl/noib3a to file a bug.

R=flutter-infra-notify+luci-recipes@google.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Ignore-Freeze: Autoroller
Bugdroid-Send-Email: False
Change-Id: I9d01db17663ddae75bcdd73a0822dc3214004137
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/66302
Commit-Queue: flutter-prod-builder@chops-service-accounts.iam.gserviceaccount.com <flutter-prod-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: flutter-prod-builder@chops-service-accounts.iam.gserviceaccount.com <flutter-prod-builder@chops-service-accounts.iam.gserviceaccount.com>
diff --git a/infra/config/recipes.cfg b/infra/config/recipes.cfg
index 5387d8d..584dfb1 100644
--- a/infra/config/recipes.cfg
+++ b/infra/config/recipes.cfg
@@ -32,7 +32,7 @@
     },
     "fuchsia": {
       "branch": "refs/heads/main",
-      "revision": "648c4b58264974a08638353d823c85c7da4d1a1f",
+      "revision": "a9eb8be4e9e112071c60c976be6d59361f28e9fe",
       "url": "https://fuchsia.googlesource.com/infra/recipes.git"
     },
     "recipe_engine": {