Merge pull request opencv#483 from asenyaev/asen/arm_build

Add arm build to GitHub Actions

Merge remote-tracking branch 'upstream/master' into 3.4

Fixed if condition for release job (opencv#478)

* Fixed if condition for release job

* Added the test release job, changed if condition

* Merged all upload steps into one for pre-release

Merge pull request opencv#480 from opencv/master

Update build process & sync master and 3.4

Update years in opencv license according to the original repo (opencv…

…#477)

Update opencv to 4.5.2

OpenCV 3.4.13

disable Qt on macOS for now due to multiple issues

update README

update README