Recorder: bump build-tools

LineageOS:*: lock platform

Jelly: platform, build-tools 34

Aperture: platform 34

Recorder: platform 34

ExactCalculator: track

Glimpse: track

LineageOS: update to lineage-21.0

Backgrounds: untrack

16.0 is long eol'ed, and we cannot support PARTNER_CUSTOMIZATION variant
after that which requires being system app

Aperture: update build-tools

Jelly: bump build-tools for newer agp

build: remove [multilib] hack

[multilib] is now enabled in the base image

Aperture: update built-tools for newer agp

Recorder: update build-tools for newer agp

build: update to jdk17

Jelly: platform 33

build: handle multiple apks

LineageOS 20.0

track Aperture

update: support not specifying build-tools version

unversioned aur package seems not to provide versioned virtual now.