or-tools: bump version to 9.15.6755

or-tools: bump version to 9.14.6206

ci: disable Microsoft JDK windows test

see: google/or-tools#4690

ci: rework windows workflows to test various JDK

ci: Fix arm64 MacOS title job name

bump maven plugins

fix example message when solver not found

or-tools bump to v9.8

ci: allow workflow_dispatch

deps: Bump or-tools to v9.6.2534