build(deps): bump the minor-and-patch group across 1 directory with 2…

… updates (#244)

build.gradle

@@ -63,7 +63,7 @@ protobuf {
         // The version of protoc must match protobuf-java. If you don't depend on
         // protobuf-java directly, you will be transitively depending on the
         // protobuf-java version that grpc depends on.
-        artifact = "com.google.protobuf:protoc:4.28.2"
+        artifact = "com.google.protobuf:protoc:4.28.3"
     }
     plugins {
         grpc {
@@ -125,7 +125,7 @@ dependencies {
     // Explicit matching of protobuf-java and protoc versions to address
     // compilation errors arising due to transitive dependency on the version of 
     // protobuf-java that grpc depends on. 
-    implementation "com.google.protobuf:protobuf-java:4.28.2"
+    implementation "com.google.protobuf:protobuf-java:4.28.3"
 
     testImplementation "io.opencensus:opencensus-api:${openCensusVersion}"
     testImplementation "io.opencensus:opencensus-exporter-trace-jaeger:${openCensusVersion}"