[release] 1.2.4.1

This tag with 2 new commits compare to 1.2.4

1. [Bug](delete) fix the delete ignore char case #18991
2. [branch-1.2](cherry-pick) using typeindex to create column instead of type name because type name is not stable #19004

gensrc/script/gen_build_version.sh

@@ -28,10 +28,10 @@
 set -eo pipefail
 
 build_version_prefix="doris"
-build_version_major=0
-build_version_minor=0
-build_version_patch=0
-build_version_rc_version="branch-1.2"
+build_version_major=1
+build_version_minor=2
+build_version_patch=4
+build_version_rc_version="1"
 
 build_version="${build_version_prefix}-${build_version_major}.${build_version_minor}.${build_version_patch}-${build_version_rc_version}"