ci: disable the "triage issues" job

This job was supposed to run periodically. However, it stopped working
when a "workflow" section was added to .gitlab-ci.yml because it
prevented pipelines of the type "scheduled" to be created.
7fa72645e5 ('gitlab-ci: make detached MR pipeline for external contributor's pipelines to run')

Now, if it's run, it fails with error:
multi_xml requires Ruby version >= 3.1.4. The current ruby version is 2.7.8.225.

Let's disable the job until we fix it and we decide what triage we want
to do. When we do it, we will need to adapt the jobs to be run with the
right periodicity, maybe using custom pipeline variables.

.gitlab-ci.yml

@@ -59,11 +59,11 @@ variables:
   #
   # This is done by running `ci-fairy generate-template` and possibly bumping
   # ".default_tag".
-  ALPINE_TAG:  'tag-81dd13f55ef0'
-  CENTOS_TAG:  'tag-844c9af59d0e'
-  DEBIAN_TAG:  'tag-29bac6f208bb'
-  FEDORA_TAG:  'tag-844c9af59d0e'
-  UBUNTU_TAG:  'tag-29bac6f208bb'
+  ALPINE_TAG:  'tag-29ef9f73ce6e'
+  CENTOS_TAG:  'tag-db8e32949a26'
+  DEBIAN_TAG:  'tag-67262330bdf8'
+  FEDORA_TAG:  'tag-db8e32949a26'
+  UBUNTU_TAG:  'tag-67262330bdf8'
 
   ALPINE_EXEC: 'bash .gitlab-ci/alpine-install.sh'
   CENTOS_EXEC: 'bash .gitlab-ci/fedora-install.sh'
@@ -654,14 +654,14 @@ pages:
   needs:
     - "t_fedora:40: [autotools+gcc+docs+valgrind]"
 
-triage:issues:
-  stage: triage
-  image: ruby:2.7
-  script:
-    - gem install gitlab-triage
-    - gitlab-triage -d --token $API_TOKEN --source-id $SOURCE_ID
-  only:
-    - schedules
+# triage:issues:
+#   stage: triage
+#   image: ruby:2.7
+#   script:
+#     - gem install gitlab-triage
+#     - gitlab-triage -d --token $API_TOKEN --source-id $SOURCE_ID
+#   only:
+#     - schedules
 
 # Clean the generated images periodically to get updated snapshots of the distribution images.
 # Create an scheduled pipeline to run it, passing an AUTHFILE environment variable of type

.gitlab-ci/ci.template

@@ -241,14 +241,14 @@ pages:
   needs:
     - "t_{{default_distro.name}}:{{default_distro.versions[0]}}: [autotools+gcc+docs+valgrind]"
 
-triage:issues:
-  stage: triage
-  image: ruby:2.7
-  script:
-    - gem install gitlab-triage
-    - gitlab-triage -d --token $API_TOKEN --source-id $SOURCE_ID
-  only:
-    - schedules
+# triage:issues:
+#   stage: triage
+#   image: ruby:2.7
+#   script:
+#     - gem install gitlab-triage
+#     - gitlab-triage -d --token $API_TOKEN --source-id $SOURCE_ID
+#   only:
+#     - schedules
 
 # Clean the generated images periodically to get updated snapshots of the distribution images.
 # Create an scheduled pipeline to run it, passing an AUTHFILE environment variable of type