ci: Update blunderbuss.yml to include Codemate (#158)

.github/blunderbuss.yml

@@ -1,8 +1,22 @@
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 assign_issues:
-  - kevoye
+  - jokerttu
   - ArturoSalazarB16
   - caio1985
 assign_prs:
-  - kevoye
+  - jokerttu
   - ArturoSalazarB16
   - caio1985