RFR: 8255255: Update Apache Santuario (XML Signature) to version 2.2.0

[Weijun Wang]

On Sat, 12 Dec 2020 02:46:45 GMT, Weijun Wang <weijun at openjdk.org> wrote:

> @wangweij This pull request has been inactive for more than 4 weeks and will be automatically closed if another 4 weeks passes without any activity. To avoid this, simply add a new comment to the pull request. Feel free to ask for assistance if you need help with progressing this pull request towards integration!

Sure.

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PR: https://git.openjdk.java.net/jdk/pull/1206