[9.20] new: ci: Check dangling symlinks in the repository

Backport of MR !10120

Merge branch 'backport-mnowak/check-dangling-symlinks-9.20' into 'bind-9.20'

See merge request isc-projects/bind9!10189

.gitlab-ci.yml

@@ -529,6 +529,8 @@ misc:
     - if git grep SYSTEMTESTTOP -- ':!.gitlab-ci.yml'; then echo 'Please use relative paths instead of $SYSTEMTESTTOP.'; exit 1; fi
     - bash util/unused-headers.sh
     - bash util/xmllint-html.sh
+    # Check dangling symlinks in the repository
+    - if find . -xtype l | grep .; then exit 1; fi
   needs: []
   artifacts:
     paths:

ChangeLog

@@ -1 +1 @@
-CHANGES
+doc/arm/changelog.rst