Bazel: Adapt gerrit_plugin rule to removal of resource_jars attribute

In upcoming Bazel release 5.0 resource_jars attribute was removed: [1].
Preserve the attribute as-is to not change the caller sites and pass in
the resource jars collection to runtime_deps as recommended.

[1] bazelbuild/bazel#13221
Change-Id: I3b49112b65a4787f7d39030c60bc7fee3298f5ba

tools/bzl/plugin.bzl

@@ -21,6 +21,7 @@ def gerrit_plugin(
         provided_deps = [],
         srcs = [],
         resources = [],
+        resource_jars = [],
         manifest_entries = [],
         dir_name = None,
         target_suffix = "",
@@ -35,8 +36,6 @@ def gerrit_plugin(
         **kwargs
     )
 
-    static_jars = []
-
     if not dir_name:
         dir_name = name
 
@@ -49,7 +48,7 @@ def gerrit_plugin(
         main_class = "Dummy",
         runtime_deps = [
             ":%s__plugin" % name,
-        ] + static_jars,
+        ] + resource_jars,
         deploy_env = deploy_env,
         visibility = ["//visibility:public"],
         **kwargs