chore(deps): update bufbuild/buf docker tag to v0.55.0

Author: renovate-bot

.circleci/config.yml

@@ -139,15 +139,15 @@ jobs:
           docker push plugins.buf.build/grpc-ecosystem/openapiv2:${CIRCLE_TAG}-1
   proto_lint:
     docker:
-      - image: bufbuild/buf:0.54.1
+      - image: bufbuild/buf:0.55.0
     steps:
       - checkout
       - run: buf build
       - run: buf lint
       - run: buf breaking --path protoc-gen-openapiv2/options/annotations.proto --path protoc-gen-openapiv2/options/openapiv2.proto --against 'https://github.com/grpc-ecosystem/grpc-gateway.git#branch=master'
   proto_push:
     docker:
-      - image: bufbuild/buf:0.54.1
+      - image: bufbuild/buf:0.55.0
     steps:
       - checkout
       - run: echo "${BUF_API_TOKEN}" | buf login --username grpcgatewaybot --token-stdin