CI: don't store kernel log, only check for coredumps.

The kernel log is uploaded automatically by the custom executor, no need
to upload it from inside the VM (and /mnt/artifacts is not mounted in
the new CI scripts).

.gitlab-ci.yml

@@ -1,10 +1,8 @@
 stages:
   - test
 
-.dump_kernel_log:
+.fail_if_coredump_generated:
   after_script:
-    - sudo dmesg > /mnt/artifacts/dmesg.log
-    - sudo journalctl > /mnt/artifacts/journalctl.log
     - '[ "$(ls -A /var/coredumps)" ] && exit 1 || true'
 
 include:

.gitlab/ci/alpinelinux.yml

@@ -1,8 +1,8 @@
 .alpinelinux-dependencies:
   variables:
     DISTRO: cryptsetup-alpine-edge
-  after_script:
-    - '[ "$(ls -A /var/coredumps)" ] && exit 1 || true'
+  extends:
+    - .fail_if_coredump_generated
   before_script:
     - >
       sudo apk add

.gitlab/ci/annocheck.yml

@@ -1,6 +1,6 @@
 test-main-commit-job-annocheck:
   extends:
-    - .dump_kernel_log
+    - .fail_if_coredump_generated
   tags:
     - libvirt
     - cryptsetup-rhel-9

.gitlab/ci/centos.yml

@@ -2,7 +2,7 @@
   variables:
     DISTRO: cryptsetup-centos-stream-9
   extends:
-    - .dump_kernel_log
+    - .fail_if_coredump_generated
   before_script:
     - >
       sudo dnf -y -q  install

.gitlab/ci/csmock.yml

@@ -1,6 +1,6 @@
 test-commit-job-csmock:
   extends:
-    - .dump_kernel_log
+    - .fail_if_coredump_generated
   tags:
     - libvirt
     - cryptsetup-rhel-9

.gitlab/ci/debian.yml

@@ -1,6 +1,6 @@
 .debian-prep:
   extends:
-    - .dump_kernel_log
+    - .fail_if_coredump_generated
   variables:
     DISTRO: cryptsetup-debian-12
   before_script:

.gitlab/ci/fedora-opal.yml

@@ -2,7 +2,7 @@
   variables:
     DISTRO: cryptsetup-fedora-rawhide
   extends:
-    - .dump_kernel_log
+    - .fail_if_coredump_generated
   before_script:
     - >
       [ -z "$RUN_SYSTEMD_PLUGIN_TEST" ] ||

.gitlab/ci/fedora.yml

@@ -2,7 +2,7 @@
   variables:
     DISTRO: cryptsetup-fedora-rawhide
   extends:
-    - .dump_kernel_log
+    - .fail_if_coredump_generated
   before_script:
     - >
       [ -z "$RUN_SYSTEMD_PLUGIN_TEST" ] ||

.gitlab/ci/rhel.yml

@@ -1,6 +1,6 @@
 .rhel-openssl-backend:
   extends:
-    - .dump_kernel_log
+    - .fail_if_coredump_generated
   before_script:
     - >
       sudo yum -y -q  install