cs_clients/tests: Add gcs_client_test

Bit simpler than retrofitting s3_client_test.

Just flexing the batch delete code.

Signed-off-by: Oren Leiman <oren.leiman@redpanda.com>

Author: oleiman

src/v/cloud_storage_clients/tests/BUILD

@@ -177,6 +177,23 @@ redpanda_cc_gtest(
         "//src/v/utils:unresolved_address",
         "@googletest//:gtest",
         "@seastar",
-        "@seastar//:testing",
+    ],
+)
+
+redpanda_cc_gtest(
+    name = "gcs_client_test",
+    timeout = "short",
+    srcs = [
+        "gcs_client_test.cc",
+    ],
+    deps = [
+        "//src/v/base",
+        "//src/v/cloud_storage_clients",
+        "//src/v/http/tests:utils",
+        "//src/v/net",
+        "//src/v/test_utils:gtest",
+        "//src/v/utils:unresolved_address",
+        "@googletest//:gtest",
+        "@seastar",
     ],
 )