taglib: Remove usage of deprecated members

ByteVector and String null/isNull members are now deprecated and are equivalent to isEmpty.

itemListMap accessor is deprecated in favor of direct members accesses with item/contains

changed milestone to %4.0

added Component:: Metadata label

added MRStatus::Reviewable label

added MRStatus::Acceptable label and removed MRStatus::Reviewable label

added MRStatus::Accepted label and removed MRStatus::Acceptable label

MR Acceptance result

This MergeRequest has been Accepted! Congratulations.

MR acceptance checks details:

• MR should be considered mergeable by Gitlab
• Last pipeline should be successful
• MergeRequest should have at least one external review and/or vote
• All threads should be resolved, and score >= 0
• MergeRequest should have no activity (threads/votes) for (24h/24h)

This message was automatically generated by homer-bot.

added 12 commits

• 5aa746db...a0b22022 - 9 commits from branch videolan:master
• d2663d6c - taglib: ByteVector::null is now deprecated
• ac59d0ba - taglib: Remove usages of deprecated itemListMap
• c404fdb2 - taglib: Remove use of deprecated String::isNull

Compare with previous version

enabled an automatic merge when the pipeline for c404fdb2 succeeds

merged