CI: Changelog: Add new variable 'CHANGELOG_PROJECTS_SKIP', remove project list

The listed projects for the changelog are now supposed to be found
automatically. No need to list them anymore.
The 'SKIP' variable is mostly ment for custom projects, to filter out
unneeded projects from the changelog.

YT-256

build-pipeline.yml

@@ -236,6 +236,9 @@ workflow:
     - for project in ${CHANGELOG_PROJECTS}; do
           PROJECT_ARGS="${PROJECT_ARGS} --project=$project";
       done
+    - for project in ${CHANGELOG_PROJECTS_SKIP}; do
+          PROJECT_ARGS="${PROJECT_ARGS} --skip-project=$project";
+      done
     - .gitlab-ci/scripts/changelog_generator.py
               --token=${GITBOT_TOKEN}
               --branch=${MASTER_BRANCH}

manifest-pipeline-ci-test.yml

@@ -22,11 +22,6 @@ variables:
   # Has to be modified for new branches, e.g. new Yocto versions or fix releases.
   MASTER_BRANCH: master
 
-  # Projects to include in the changelog in addition to the manifest project
-  CHANGELOG_PROJECTS:
-    seco-ne/yocto/infrastructure/ci-test/minimal-bar
-    seco-ne/yocto/infrastructure/ci-test/minimal-foo
-
   # List of machines to simulate building images for
   MACHINES: seco-mx6 seco-mx8mm
 

manifest-pipeline-yocto.yml

@@ -18,11 +18,6 @@ variables:
 
   BUILD_TIMEOUT: 1h
 
-  # Projects to include in the changelog in addition to the manifest project
-  CHANGELOG_PROJECTS:
-    seco-ne/yocto/layers/meta-seconorth-distro
-    seco-ne/yocto/layers/meta-seconorth-machine
-
   # List of machines to build images for
   MACHINES: imx6guf imx6ullguf imx8mguf imx8mpguf