Minor release with several bug fixes and some incompatible changes[1].
[1] changelog https://blog.bazel.build/2020/10/06/bazel-3-6.html
Renew of most ports patch files via 'make makepatch'.
Submitted by Klaus Aehlig <aehlig@linta.de> (maintainer) in PR 250164
Tested on Poudriere (amd64, i386). 'portlint -AC' is ok.