chore: update submodule version

DimitarTachev · DimitarTachev · commit af64863dad6f · 2018-07-12T11:11:25.000+03:00
diff --git a/lib/common b/lib/common
@@ -1 +1 @@
-Subproject commit cef91c4816d32aedfab92b49c7e4903db14b4936
+Subproject commit 2b71367bac3e91289e2c9312841914b4ac2dfe7b
