Zabbix

.......PS. [ZBX-24504] improved prometheus to json preprocessing step performance when reused with similar parameters in dependent items

Merge in ZBX/zabbix from feature/ZBX-24504-7.0 to release/7.0

* commit 'f0bfbc67abb0431932bf7c2be8973d4fb782439d':
  .......PS. [ZBX-24504] added vector reservation for 2 labels to avoid automatic vector expansion to 32 slots when adding first label
  .......PS. [ZBX-24504] removed redundant input value copying in preprocessing to json step when index is used
  .D........ [ZBX-24504] updated changelog entry
  .D........ [ZBX-24504] add changelog entry
  .......PS. [ZBX-24504] added check to avoid rescanning prometheus rows if index returned no matches
  .......PS. [ZBX-24504] added indexing support to prometheus to json preprocessing steps