* New upstream release from the beta channel (FIREFOX_92_0b3_BUILD1)
* Update cbindgen to 0.20.0
  - debian/build/create-tarball.py
* Drop superfluous alternative for clang 8
  - debian/control{,.in}
  - debian/build/rules.mk
* Update patches
  - debian/patches/armhf-do-not-build-qcms-with-neon.patch
  - debian/patches/armhf-reduce-linker-memory-use.patch
  - debian/patches/ubuntu-ua-string-changes.patch
* Remove patches that are no longer needed
  - debian/patches/armhf-disable-unaligned-fp-access-emulation.patch
* Drop workaround for gtk2
  - debian/build/rules.mk