- Update to 1.5.3
* MAM: Fix task is never finished when none of the messages is
encrypted but e2ee is enabled
* SaslDigestMd5: Fix undefined behaviour with Qt 6 when parsing
empty property at the end of the input
* CarbonManagerV2: Fix enable IQ sending
* Fix various OMEMO issues and update to libomemo-c 0.5
* Add CMake option to manually specify Qt major version
* Readd old PubSubIq and PubSubItem after justified complaints

- Update to 1.5.2
* Fix undefined behaviour in OmemoManager and FileSharingManager
* STUN: Fix nonce attribute is not padded
Changes in 1.5.1:
* Fix build with clang (usage of auto in template argument)
Changes in 1.5.0:
* New QXmppTask/Promise for asynchronous APIs
* Packet sending result reporting (sent, stream management acks)
* IQ response recognition and mapping to requests via QXmppTask
* Add QXmppTask-based APIs to most of the managers
* Implement XEP-0060: Publish-Subscribe (nearly complete)
* Implement XEP-0118: User Tune
* Implement XEP-0080: User Location
* Rewrite MIX items with new PubSubItem
* Add specified data forms parsing utilities
* Implement XEP-0384: OMEMO Encryption
* Implement XEP-0434: Trust Messages (TM)
* Implement XEP-0450: Automatic Trust Management (ATM)
* Implement XEP-0420: Stanza Content Encryption
* Add new Message Carbons manager capable of end-to-end