Update pom.xml

Author: yeikel

pom.xml

@@ -15,7 +15,7 @@
 
   <properties>
     <stack.version>5.0.0-SNAPSHOT</stack.version>
-    <grpc.version>1.54.1</grpc.version>
+    <grpc.version>1.55.1</grpc.version>
     <protoc.version>3.21.12</protoc.version>
     <doc.skip>true</doc.skip>
   </properties>