Bump igbinary to v3.1.6

nicolas-grekas · nicolas-grekas · commit 1058e19ab4bb · 2020-10-17T18:04:15.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -183,7 +183,7 @@ before_install:
               tfold ext.redis tpecl redis-5.2.2 redis.so $INI "no"
           fi
 
-          tfold ext.igbinary tpecl igbinary-3.1.5 igbinary.so $INI
+          tfold ext.igbinary tpecl igbinary-3.1.6 igbinary.so $INI
       done
     - |
       # List all php extensions with versions
