reduce cache time to 1 hours so future docs releases update the cloudfront caches faster

Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@fosiki.com> (github: SvenDowideit)
Merge pull request #5731 from SvenDowideit/reduce-cache-max-age

reduce cache time to 1 hours so future docs releases update the cloudfront caches faster