update .github/CODEOWNERS and blunderbuss.yml

Author: dizcology

.github/CODEOWNERS

@@ -71,6 +71,7 @@
 /texttospeech/**/*                     @GoogleCloudPlatform/dee-data-ai @GoogleCloudPlatform/python-samples-reviewers
 /translate/**/*                        @GoogleCloudPlatform/dee-data-ai @GoogleCloudPlatform/python-samples-reviewers
 /video/transcoder/*                    @GoogleCloudPlatform/dee-data-ai @GoogleCloudPlatform/python-samples-reviewers
+/bigquery-connection/**/*                    @GoogleCloudPlatform/dee-data-ai @GoogleCloudPlatform/python-samples-reviewers
 
 # Cloud SDK Databases & Data Analytics teams
 # ---* Cloud Native DB

.github/blunderbuss.yml

@@ -70,6 +70,7 @@ assign_issues_by:
       - "api: texttospeech"
       - "api: translate"
       - "api: vision"
+      - "api: bigquery"
     to:
       - GoogleCloudPlatform/dee-data-ai