Merge pull request #1104 from simonseyock/security-fixes-2.x.x

Security fixes 2.x.x

Merge pull request #1109 from simonseyock/fix-build-version-1.x.x

fix(dockerbuild): use github.ref_name as mapproxy version

dev: prepare 4.0.1 release

ci: fix build pipeline for 4.0.0 release

dev: prepare 3.1.2 release

dev: prepare 3.1.2 release

dev: prepare 3.1.1 release

chore: fix blank lines in CHANGES.txt

dev: prepare 3.0.1 release

dev: prepare 3.0.0 release