BUG/MINOR: ssl: fix possible ctx memory leak in sample_conv_aes_gcm()

The issue was introduced with the commit c31499d74 ("MINOR: ssl: Add
aes_gcm_dec converter").

This must be backported to all stable branches where the above converter
is present, but it may need to be adjusted for older branches because of
code refactoring.

(cherry picked from commit d7610e6dded19223a4c796c55565f5c57cb912d5)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 932381615d928c67f72879f0f65aab6e78626cc2)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
1 file changed