THRIFT-5447: Update supported Go versions
Client: go
Update go versions used in travis to 1.16.7 and 1.17, update
LANGUAGES.md, and update go's README to clarify on support policy.
This change will be cherry-picked into 0.15.0 branch after merged.
diff --git a/.gitignore b/.gitignore
index 6d07751..804cfba 100644
--- a/.gitignore
+++ b/.gitignore
@@ -272,6 +272,7 @@
/lib/erl/logs/
/lib/go/pkg
/lib/go/src
+/lib/go/test/fuzz/gopathfuzz
/lib/go/test/gopath/
/lib/go/test/ThriftTest.thrift
/lib/nodets/test-compiled/