fix(deps): update grpc ecosystem

Author: renovate[bot]

pyproject.toml

@@ -21,8 +21,8 @@ dependencies = [
   "jsonrpcclient==4.0.3",
   "crossplane-function-sdk-python==0.11.0",
   "click==8.3.1",
-  "grpcio==1.76.0",
-  "protobuf==6.33.5"
+  "grpcio==1.78.0",
+  "protobuf==6.33.6"
 ]
 
 dynamic = ["version"]