feat: add feature flag for client side metrics (#2179)

- [ ] Regenerate this pull request now.

PiperOrigin-RevId: 619540187

Source-Link: https://togithub.com/googleapis/googleapis/commit/cbe62016a4eb24e71186899b79b9a4736f858653

Source-Link: https://togithub.com/googleapis/googleapis-gen/commit/1587174866b7ab761aed1dbfb9588f5b36ee1590
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiMTU4NzE3NDg2NmI3YWI3NjFhZWQxZGJmYjk1ODhmNWIzNmVlMTU5MCJ9

BEGIN_NESTED_COMMIT
feat: add Data Boost configurations to admin API
PiperOrigin-RevId: 617925342

Source-Link: https://togithub.com/googleapis/googleapis/commit/6f289d775912966eb0cf04bda91e5e355c998d30

Source-Link: https://togithub.com/googleapis/googleapis-gen/commit/92da6d5d435af533f726a97bcfff3c717832c877
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiOTJkYTZkNWQ0MzVhZjUzM2Y3MjZhOTdiY2ZmZjNjNzE3ODMyYzg3NyJ9
END_NESTED_COMMIT

Author: gcf-owl-bot[bot]

google-cloud-bigtable/src/main/resources/META-INF/native-image/com.google.cloud.bigtable.admin.v2/reflect-config.json

@@ -395,6 +395,33 @@
     "allDeclaredClasses": true,
     "allPublicClasses": true
   },
+  {
+    "name": "com.google.bigtable.admin.v2.AppProfile$DataBoostIsolationReadOnly",
+    "queryAllDeclaredConstructors": true,
+    "queryAllPublicConstructors": true,
+    "queryAllDeclaredMethods": true,
+    "allPublicMethods": true,
+    "allDeclaredClasses": true,
+    "allPublicClasses": true
+  },
+  {
+    "name": "com.google.bigtable.admin.v2.AppProfile$DataBoostIsolationReadOnly$Builder",
+    "queryAllDeclaredConstructors": true,
+    "queryAllPublicConstructors": true,
+    "queryAllDeclaredMethods": true,
+    "allPublicMethods": true,
+    "allDeclaredClasses": true,
+    "allPublicClasses": true
+  },
+  {
+    "name": "com.google.bigtable.admin.v2.AppProfile$DataBoostIsolationReadOnly$ComputeBillingOwner",
+    "queryAllDeclaredConstructors": true,
+    "queryAllPublicConstructors": true,
+    "queryAllDeclaredMethods": true,
+    "allPublicMethods": true,
+    "allDeclaredClasses": true,
+    "allPublicClasses": true
+  },
   {
     "name": "com.google.bigtable.admin.v2.AppProfile$MultiClusterRoutingUseAny",
     "queryAllDeclaredConstructors": true,
@@ -1052,6 +1079,24 @@
     "allDeclaredClasses": true,
     "allPublicClasses": true
   },
+  {
+    "name": "com.google.bigtable.admin.v2.DataBoostReadLocalWrites",
+    "queryAllDeclaredConstructors": true,
+    "queryAllPublicConstructors": true,
+    "queryAllDeclaredMethods": true,
+    "allPublicMethods": true,
+    "allDeclaredClasses": true,
+    "allPublicClasses": true
+  },
+  {
+    "name": "com.google.bigtable.admin.v2.DataBoostReadLocalWrites$Builder",
+    "queryAllDeclaredConstructors": true,
+    "queryAllPublicConstructors": true,
+    "queryAllDeclaredMethods": true,
+    "allPublicMethods": true,
+    "allDeclaredClasses": true,
+    "allPublicClasses": true
+  },
   {
     "name": "com.google.bigtable.admin.v2.DeleteAppProfileRequest",
     "queryAllDeclaredConstructors": true,
@@ -2033,6 +2078,24 @@
     "allDeclaredClasses": true,
     "allPublicClasses": true
   },
+  {
+    "name": "com.google.bigtable.admin.v2.StandardReadRemoteWrites",
+    "queryAllDeclaredConstructors": true,
+    "queryAllPublicConstructors": true,
+    "queryAllDeclaredMethods": true,
+    "allPublicMethods": true,
+    "allDeclaredClasses": true,
+    "allPublicClasses": true
+  },
+  {
+    "name": "com.google.bigtable.admin.v2.StandardReadRemoteWrites$Builder",
+    "queryAllDeclaredConstructors": true,
+    "queryAllPublicConstructors": true,
+    "queryAllDeclaredMethods": true,
+    "allPublicMethods": true,
+    "allDeclaredClasses": true,
+    "allPublicClasses": true
+  },
   {
     "name": "com.google.bigtable.admin.v2.StorageType",
     "queryAllDeclaredConstructors": true,