Fix up download error

Author: jeanduplessis

Makefile

@@ -29,7 +29,7 @@ GO111MODULE = on
 # Uncomment below to override the versions from the build module
 #KIND_VERSION = v0.27.0
 UP_VERSION = v0.34.2
-#UP_CHANNEL = stable
+UP_CHANNEL = stable
 UPTEST_VERSION = v0.11.1
 UPTEST_LOCAL_VERSION = v0.13.0
 UPTEST_LOCAL_CHANNEL = stable