Update supported go versions to 1.20 and 1.21
diff --git a/lib/go/test/fuzz/go.mod b/lib/go/test/fuzz/go.mod
index 6641881..41cccc3 100644
--- a/lib/go/test/fuzz/go.mod
+++ b/lib/go/test/fuzz/go.mod
@@ -1,6 +1,6 @@
module github.com/apache/thrift/lib/go/test/fuzz
-go 1.19
+go 1.20
replace github.com/apache/thrift => ../../../../
diff --git a/lib/go/test/go.mod b/lib/go/test/go.mod
index 1c6d80d..59535e6 100644
--- a/lib/go/test/go.mod
+++ b/lib/go/test/go.mod
@@ -1,6 +1,6 @@
module github.com/apache/thrift/lib/go/test
-go 1.19
+go 1.20
require (
github.com/apache/thrift v0.0.0-00010101000000-000000000000