build: enable automatic publishing

build: add gh action to deploy to maven central

build: officially reduce java requirement to version 11

Merge branch 'refs/heads/master' into java11

build: update project url metadata

feat: backport to java11

docs: specify java requirement

build: update repository url

docs: update examples link

build: configure signing plugin

build: configure publish plugin

feat: add README.md and examples

feat: add module-info.java

feat: add webhook bot sending logic

initial commit