bump grpcVersion from 1.50.2 to 1.51.0 (via #859)

Author: dependabot[bot]

allure-grpc/build.gradle.kts

@@ -8,7 +8,7 @@ description = "Allure gRPC Integration"
 
 val agent: Configuration by configurations.creating
 
-val grpcVersion = "1.50.2"
+val grpcVersion = "1.51.0"
 val protobufVersion = "3.21.9"
 
 dependencies {