equals is broken for UpdateAppProfileRequest

[igorbernstein2]

java-bigtable/google-cloud-bigtable/src/main/java/com/google/cloud/bigtable/admin/v2/models/UpdateAppProfileRequest.java

Line 154 in 0d197a5

&& Objects.equal(proto, that.proto);

The proto comparison must build the proto before comparison. Also, comparing the proto is problematic here since the proto builder mutates when toProto((String projectId) is called