Enable the Tab Groups API on Stable channel

Bug: 1106846
Change-Id: I674faa4aa0e34ac6d8294e2c7c6cc096c409568f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2626891Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Commit-Queue: Connie Wan <connily@chromium.org>
Cr-Commit-Position: refs/heads/master@{#843637}

chrome/common/extensions/api/_permission_features.json

@@ -797,7 +797,7 @@
     "location": "component"
   },
   "tabGroups": {
-    "channel": "dev",
+    "channel": "stable",
     "extension_types": ["extension"],
     "min_manifest_version": 3
   },