vim: update to 9.0

Remove upstreamed patches:
- 001-support-defining-compilation-date-in-SOURCE_DATE_EPOCH.patch
  -> https://github.com/vim/vim/commit/8f1dde5021d9623a951d1ccbc78cf1b1a55ccd7a
- 020-macos.patch
  -> https://github.com/vim/vim/commit/5289783e0b07cfc3f92ee933261ca4c4acdca007

Refresh patches:
- 002-remove_helptags_generation.patch

Release Notes:
https://www.vim.org/vim90.php



Signed-off-by: Nick Hainke <vincent@systemli.org>
Signed-off-by: Javier Marcet <javier@marcet.info>