chore: upgrade grpc client nginx module version (#335)

Author: shreemaan-abhishek

build-apisix-base.sh

@@ -24,7 +24,7 @@ else
     apisix_nginx_module_ver="1.14.0"
     wasm_nginx_module_ver="0.6.5"
     lua_var_nginx_module_ver="v0.5.3"
-    grpc_client_nginx_module_ver="v0.4.3"
+    grpc_client_nginx_module_ver="v0.4.4"
     debug_args=${debug_args:-}
     OR_PREFIX=${OR_PREFIX:="/usr/local/openresty"}
 fi