Update Fred Konrad email address to avoid emails bouncing.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: KONRAD Frederic <frederic.konrad@adacore.com>
Message-Id: <20200518103920.10699-1-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>