Major changes:

• filelists metadata not loaded by default
• drop deltarpm support

New features:

• conf: Introduce new option to load filelists on demand (--setopt=optional_metadata_types=filelists)
• cli: Add a hint for user on transaction file dependency failure
• cli: Setup filelists metadata for commands that need them
• util: Add function for detecting file in specs

Bug fixes:

• Fix failing API unit test on rawhide (RhBug:2261066)
• automatic: Use add_security_filters, not _update_security_filters