CI: Drop slurp upgrade jobs - 2024.1 is going unmaintained

See [1]

[1]: https://review.opendev.org/q/topic:%22caracal-unmaintained%22

Change-Id: Ia65a07ef8b0b282f34fb3b647c8ad750ac00dd13
Signed-off-by: Michal Nasiadka <[email protected]>

Author: mnasiadka

zuul.d/project.yaml

@@ -40,15 +40,9 @@
         - kolla-ansible-debian-ironic
         - kolla-ansible-ubuntu-ironic
         - kolla-ansible-rocky9-upgrade
-        - kolla-ansible-rocky9-slurp-upgrade:
-            voting: false
         - kolla-ansible-debian-upgrade:
             voting: false
-        - kolla-ansible-debian-slurp-upgrade:
-            voting: false
         - kolla-ansible-ubuntu-upgrade
-        - kolla-ansible-ubuntu-slurp-upgrade:
-            voting: false
         - kolla-ansible-ubuntu-cells
         - kolla-ansible-rocky9-cells
         - kolla-ansible-debian-mariadb
@@ -70,11 +64,7 @@
         - kolla-ansible-rocky9-cephadm
         - kolla-ansible-ubuntu-cephadm
         - kolla-ansible-rocky9-upgrade-cephadm
-        - kolla-ansible-rocky9-slurp-upgrade-cephadm:
-            voting: false
         - kolla-ansible-ubuntu-upgrade-cephadm
-        - kolla-ansible-ubuntu-slurp-upgrade-cephadm:
-            voting: false
         - kolla-ansible-rocky9-hashi-vault
         - kolla-ansible-rocky9-haproxy-fqdn
         - kolla-ansible-ubuntu-haproxy-fqdn