Update dependency maven to v3.9.6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
maven	3.9.5 -> 3.9.6

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[coveralls]

coverage: 88.484% (-0.2%) from 88.676% when pulling 6ec6356c23bd28256fe7dbb71ebb6f92e8557499 on renovate/maven-3.x into d34e4f765cd1e7de1eaae4676fa2f224d376cbb2 on master.