deps: update dependency com.google.cloud:google-cloud-bom to v0.177.0 (#504)
deps: update dependency com.google.cloud:google-cloud-bom to v0.177.0 (#504)

* deps: update dependency com.google.cloud:google-cloud-bom to v0.177.0

* deps: update protobuf.version to 3.21.4

Co-authored-by: BenWhitehead <6e442f8aef2389ef8b365869b3f123696bedec26@users.noreply.github.com>
googleapis/java-conformance-tests,googleapis/java-conformance-tests,googleapis/java-conformance-tests