build(deps): bump grpcVersion from 1.63.0 to 1.64.0

Bumps `grpcVersion` from 1.63.0 to 1.64.0.

Updates `io.grpc:protoc-gen-grpc-java` from 1.63.0 to 1.64.0
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.63.0...v1.64.0)

Updates `io.grpc:grpc-core` from 1.63.0 to 1.64.0
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.63.0...v1.64.0)

Updates `io.grpc:grpc-stub` from 1.63.0 to 1.64.0
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.63.0...v1.64.0)

Updates `io.grpc:grpc-netty-shaded` from 1.63.0 to 1.64.0
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.63.0...v1.64.0)

Updates `io.grpc:grpc-protobuf` from 1.63.0 to 1.64.0
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.63.0...v1.64.0)

---
updated-dependencies:
- dependency-name: io.grpc:protoc-gen-grpc-java
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.grpc:grpc-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.grpc:grpc-stub
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.grpc:grpc-netty-shaded
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.grpc:grpc-protobuf
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

build.gradle

@@ -19,7 +19,7 @@ repositories {
 }
 
 def caseCoreVersion = "0.15.6"
-def grpcVersion = "1.63.0"
+def grpcVersion = "1.64.0"
 
 dependencies {
     api "io.contract-testing.contractcase:case_example_mock_types:${caseCoreVersion}"
@@ -71,7 +71,7 @@ protobuf {
         // If you don't specify it, protoc will try to use "protoc-gen-grpc" from
         // system search path.
         'grpc' {
-            artifact = 'io.grpc:protoc-gen-grpc-java:1.63.0'
+            artifact = 'io.grpc:protoc-gen-grpc-java:1.64.0'
         }
     }
     protoc {