Update dependency io_bazel_rules_go to v0.38.1
diff --git a/WORKSPACE b/WORKSPACE
index 8804f6f..81d6d58 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -32,10 +32,10 @@
 
 http_archive(
     name = "io_bazel_rules_go",
-    sha256 = "56d8c5a5c91e1af73eca71a6fab2ced959b67c86d12ba37feedb0a2dfea441a6",
+    sha256 = "dd926a88a564a9246713a9c00b35315f54cbd46b31a26d5d8fb264c07045f05d",
     urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/rules_go/releases/download/v0.37.0/rules_go-v0.37.0.zip",
-        "https://github.com/bazelbuild/rules_go/releases/download/v0.37.0/rules_go-v0.37.0.zip",
+        "https://mirror.bazel.build/github.com/bazelbuild/rules_go/releases/download/v0.38.1/rules_go-v0.38.1.zip",
+        "https://github.com/bazelbuild/rules_go/releases/download/v0.38.1/rules_go-v0.38.1.zip",
     ],
 )