Update blunderbuss to use java-samples-reviewers team
assign_issues:
- - averikitsch
- - dzlier-gcp
- - gguuss
- - kurtisvg
- - stephaniewang526
+ - GoogleCloudPlatform/java-samples-reviewers
assign_prs:
- - averikitsch
- - dzlier-gcp
- - gguuss
- - kurtisvg
- - lesv
- - stephaniewang526
+ - GoogleCloudPlatform/java-samples-reviewers
