don't run KDE default jobs

this feature is only about clang-format
1 job for !960 with clang-format-gitlab-ci in 1 minute and 3 seconds (queued for 4 minutes and 7 seconds)
detached
Status Name Job ID Coverage
  Build
failed clang_format #118456

00:01:03

 
Name Stage Failure
failed
clang_format Build
Processing triggers for libc-bin (2.31-12) ...
$ wget -c --output-document=.clang-format https://invent.kde.org/frameworks/extra-cmake-modules/raw/master/kde-modules/clang-format.cmake
--2021-07-17 01:59:28-- https://invent.kde.org/frameworks/extra-cmake-modules/raw/master/kde-modules/clang-format.cmake
Resolving invent.kde.org (invent.kde.org)... 195.201.182.103, 2a01:4f8:231:3116::3
Connecting to invent.kde.org (invent.kde.org)|195.201.182.103|:443... connected.
ERROR: The certificate of 'invent.kde.org' is not trusted.
ERROR: The certificate of 'invent.kde.org' doesn't have a known issuer.
Cleaning up file based variables
ERROR: Job failed: exit code 1