Updated reference to xamarin/md-addins@bbd39bb

Author: sandyarmstrong

version-checks

@@ -17,7 +17,7 @@ DEP[0]=md-addins
 DEP_NAME[0]=MDADDINS
 DEP_PATH[0]=${top_srcdir}/../md-addins
 DEP_MODULE[0][email protected]:xamarin/md-addins.git
-DEP_NEEDED_VERSION[0]=03400ba1138f72bd03c7e2f572da1fd2d9ccec9f
+DEP_NEEDED_VERSION[0]=bbd39bb95da302604319b4008eacb6f4f3ec5e94
 DEP_BRANCH_AND_REMOTE[0]="release-8.4 origin/release-8.4"
 
 # heap-shot