Update .mailmap

[Al2Klimov]

closes #9114

[Al2Klimov]

@cycloon Is this ok?

[Al2Klimov]

It is.

1. https://github.com/Icinga/icinga2/pulls?q=is%3Apr+is%3Aclosed+author%3Acycloon
2. Make notification mails more readable. Remove redundancy and cruft. #5468, check_ssl_cert: support --ignore-tls-renegotiation #9042
3. git show --stat 5a222396c28b07c0e905cd09a505d1c083bda90f

0f0b6f1df9576ff2bc6620dd603452fa6ad3a85e
commit 5a222396c28b07c0e905cd09a505d1c083bda90f
Author: Christian Gut <cycloon@is-root.org>
Date:   Wed Oct 20 12:31:03 2021 +0200

    check_tls_cert: support  --ignore-tls-renegotiation

    Extend template, so we can support --ignore-tls-renegotiation

 itl/plugins-contrib.d/web.conf | 4 ++++
 1 file changed, 4 insertions(+)

commit 0f0b6f1df9576ff2bc6620dd603452fa6ad3a85e (origin/pull/5468)
Author: Christian Gut <christian.gut@trendswm.de>
Date:   Mon Aug 7 15:55:17 2017 +0200

    Notification scripts: More readable & redundancy cleanup

 etc/icinga2/scripts/mail-host-notification.sh    |  9 ++++-----
 etc/icinga2/scripts/mail-service-notification.sh | 11 +++++------
 2 files changed, 9 insertions(+), 11 deletions(-)

[Al2Klimov]

Not really urgent as #9114 won't spam once Probot is fixed.