Update org.apache.mina:mina-core to 2.0.27

Release notes: https://mina.apache.org/mina-project/

Release-Notes: Update org.apache.mina:mina-core to 2.0.27
Change-Id: I235f25101ccc08a1991872b4d43f7ed87882b420

tools/nongoogle.bzl

diff --git a/tools/nongoogle.bzl b/tools/nongoogle.bzl
index a9c95bf..26e7262 100644
--- a/tools/nongoogle.bzl
+++ b/tools/nongoogle.bzl
@@ -159,8 +159,8 @@
 
     maven_jar(
         name = "mina-core",
-        artifact = "org.apache.mina:mina-core:2.0.23",
-        sha1 = "391228b25d3a24434b205444cd262780a9ea61e7",
+        artifact = "org.apache.mina:mina-core:2.0.27",
+        sha1 = "d5d353d971b0fb17ae0271f6f2921585f64e1535",
     )
 
     maven_jar(