Explicitly declare dependencies for plexus-xml and plexus-utils

[linghengqian]

• Fixes Native maven plugin agent not compatible with Maven 3.9.x #418 .
• Explicitly declare dependencies for plexus-xml and plexus-utils. Refer to https://github.com/codehaus-plexus/plexus-utils/releases/tag/plexus-utils-4.0.0 and https://issues.apache.org/jira/browse/MNG-6965.

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[dnestoro]

Should this change also be documented in our changelog @melix ?

[melix]

Fair point. I think we could simply say "Fix compatibility with Maven 3.9"

[linghengqian]

@linghengqian can you create a quick PR to add missing changelog note (with text @melix mentioned above)?

• @dnestoro Looks like github.com deleted your comment, I just saw it in my email spam. Do I still need to do this?

[dnestoro]

@linghengqian No, we will add that once we create a new release. Thank you anyway

[olpaw]

Fair point. I think we could simply say "Fix compatibility with Maven 3.9"

Added 5cb65e5