fix: Add -lpthread to link Bazel BUILD options (#189)

* fix: Add -pthread link option to Bazel BUILD file
* fix: Use -lpthread instead of -pthread
diff --git a/BUILD b/BUILD
index c9dc00d..cf85354 100644
--- a/BUILD
+++ b/BUILD
@@ -40,6 +40,7 @@
     includes = [
         "include",
     ],
+    linkopts = ["-lpthread"],
     visibility = ["//visibility:public"],
 )