VOL-3588 Update OFAgent to support new version of protos

Change-Id: Ic3944779f9a600ebcd5d7a916616f473059e311e
diff --git a/vendor/github.com/opentracing/opentracing-go/.travis.yml b/vendor/github.com/opentracing/opentracing-go/.travis.yml
index 8d5b75e..b950e42 100644
--- a/vendor/github.com/opentracing/opentracing-go/.travis.yml
+++ b/vendor/github.com/opentracing/opentracing-go/.travis.yml
@@ -2,8 +2,8 @@
 
 matrix:
   include:
-  - go: "1.11.x"
-  - go: "1.12.x"
+  - go: "1.13.x"
+  - go: "1.14.x"
   - go: "tip"
     env:
     - LINT=true