REGTESTS: healthcheckmail: Update the test to be functionnal again

This reg-test is broken since a while. It was simplified to be
functionnal. Now, it only test email alerts.

(cherry picked from commit 52912579eea3680952c7dd9e80c8ea5c298eeca3)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 6ad2f99a7f03652fc86837c37e3dce81b822b162)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 00fc0b6f9db548bb9121dccd3a29a6a48875f12f)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
2 files changed