Merge pull request #15554 from nextcloud/backport/15552/stable16

[stable16] Update ca bundle checker

build/ca-bundle-checker.sh

@@ -1,7 +1,6 @@
 #!/usr/bin/env bash
 
-echo
-if [[ -n ${DRONE_COMMIT_REFSPEC} &&  ! ${DRONE_COMMIT_REFSPEC} =~ version\/noid\/.+ ]]; then
+if [[ -n ${DRONE_SOURCE_BRANCH} && ! ${DRONE_SOURCE_BRANCH} =~ version(\/noid)?\/([0-9.]+) ]]; then
     echo "Skip CA bundle check"
     exit 0
 fi