Merge the three EA jobs (zulu, temurin, sapmachine) into a single
setup-java-ea-versions job driven by a matrix include list, and merge
the two signature-verification jobs (temurin, microsoft) into a single
setup-java-signature-verification job with a distribution matrix
dimension. Test coverage is unchanged: all 15 EA combos and all 12
signature combos still run.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 9924b163-0ad2-4f8c-b038-0f00220a3157
32412cd4f3