jenkins: let jenkins umount another directory

needed after 8139f77f



Signed-off-by: Mattia Rizzolo <mattia@debian.org>

hosts/common/etc/sudoers.d/jenkins

@@ -29,6 +29,7 @@ jenkins ALL=  \
 	/bin/umount -l /chroots/*, \
 	/bin/umount -l /schroots/*, \
 	/bin/umount -l /media/*, \
+	/bin/umount /srv/schroots/*, \
 	/bin/rmdir /media/*, \
 	/bin/mount -o loop*, \
 	/bin/mount --bind *, \

hosts/jenkins/etc/sudoers.d/jenkins

@@ -27,6 +27,7 @@ jenkins ALL=  \
 	/bin/umount -l /chroots/*, \
 	/bin/umount -l /schroots/*, \
 	/bin/umount -l /media/*, \
+	/bin/umount /srv/schroots/*, \
 	/bin/rmdir /media/*, \
 	/bin/mount -o loop*, \
 	/bin/mount --bind *, \