🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Author: gcf-owl-bot[bot]

google/cloud/bigtable_admin_v2/types/instance.py

@@ -89,6 +89,20 @@ class Instance(proto.Message):
             Output only. Reserved for future use.
 
             This field is a member of `oneof`_ ``_satisfies_pzi``.
+        tags (MutableMapping[str, str]):
+            Optional. Input only. Immutable. Tag
+            keys/values directly bound to this resource. For
+            example:
+
+            - "123/environment": "production",
+            - "123/costCenter": "marketing"
+
+            Tags and Labels (above) are both used to bind
+            metadata to resources, with different use-cases.
+            See
+            https://cloud.google.com/resource-manager/docs/tags/tags-overview
+            for an in-depth overview on the difference
+            between tags and labels.
     """
 
     class State(proto.Enum):
@@ -169,6 +183,11 @@ class Type(proto.Enum):
         number=11,
         optional=True,
     )
+    tags: MutableMapping[str, str] = proto.MapField(
+        proto.STRING,
+        proto.STRING,
+        number=12,
+    )
 
 
 class AutoscalingTargets(proto.Message):