Disable doclint for now

There's a number of small javadoc issues to be fixed but we'll deal
with that later.

Disable auto-publish

Maven Central auto-publishing provides no way to verify the build
will validate correctly before pushing it. Switch back to non-auto
for now.

chore: mark 1.2.x as EOL

(cherry picked from commit 6acd923)

Version 1.2.7

[release] prepare for 1.2.6

[release] prepare for 1.2.5

[release] prepare for 1.2.4

[release] prepare for 1.2.3

[maven-release-plugin] copy for tag jruby-rack-1.2.2

[maven-release-plugin] copy for tag jruby-rack-1.2.1