package/gst1-devtools: bump version to 1.20.4
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit bc5ab96f7c76d0c5c2a064c661616187d9a76af3)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>