[gimp-web/master] (12 commits) ...Merge branch 'testing'

[Michael Schumacher <schumaml src gnome org>]

Summary of changes:

  5222902... tools: some improvements to the gimp-check-mirrors script (*)
  0d18835... tools: add virustotal_upload.py (*)
  b75fab6... Add the CI builds in a subsection of the dev downloads page (*)
  e6ea1b8... Kickstart the news for GIMP 2.10.24. (*)
  657a897... Add a warning about 2.99.4 export broken on Windows. (*)
  f53a578... Also use the comment section for the development download p (*)
  b7b336d... Adding some warning emoticones to bring more emphasis. (*)
  7ea52f3... Update themes/newgimp/templates/downloads.html (*)
  2981461... Remove not built languages from main website: (*)
  577f817... 2.10.24: bump the announcement date :) (*)
  0398ae2... news: set 2.10.24 release annoucnement to Status: draft (*)
  e27cde7... Merge branch 'testing'

(*) This commit already existed in another branch; no separate mail sent