chore: add flag to bazel rule

Author: diegomarquezp

rules_java_gapic/java_gapic.bzl

@@ -190,6 +190,7 @@ def _java_gapic_srcjar(
         # possible values are: "grpc", "rest", "grpc+rest"
         transport,
         rest_numeric_enums,
+        generate_version_java = True,
         # Can be used to provide a java_library with a customized generator,
         # like the one which dumps descriptor to a file for future debugging.
         java_generator_name = "java_gapic",
@@ -217,6 +218,9 @@ def _java_gapic_srcjar(
     if rest_numeric_enums:
         opt_args.append("rest-numeric-enums")
 
+    if generate_version_java:
+        opt_args.append("generate-version-java")
+
     # Produces the GAPIC metadata file if this flag is set. to any value.
     # Protoc invocation: --java_gapic_opt=metadata
     plugin_args = ["metadata"]
@@ -245,6 +249,7 @@ def java_gapic_library(
         # possible values are: "grpc", "rest", "grpc+rest"
         transport = None,
         rest_numeric_enums = False,
+        generate_version_java = True,
         **kwargs):
     srcjar_name = name + "_srcjar"
     raw_srcjar_name = srcjar_name + "_raw"
@@ -257,6 +262,7 @@ def java_gapic_library(
         service_yaml = service_yaml,
         transport = transport,
         rest_numeric_enums = rest_numeric_enums,
+        generate_version_java = generate_version_java,
         java_generator_name = "java_gapic",
         **kwargs
     )
@@ -399,6 +405,7 @@ def java_generator_request_dump(
         service_yaml = None,
         transport = None,
         rest_numeric_enums = False,
+        generate_version_java = True,
         **kwargs):
     _java_gapic_srcjar(
         name = name,
@@ -408,6 +415,7 @@ def java_generator_request_dump(
         service_yaml = service_yaml,
         transport = transport,
         rest_numeric_enums = rest_numeric_enums,
+        generate_version_java = generate_version_java,
         java_generator_name = "code_generator_request_dumper",
         **kwargs
     )