fix(deps): update gradle (major)

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.hamcrest:hamcrest-library (source)	2.2 -> 3.0
org.jboss:jandex (source)	2.2.3.Final -> 3.3.1
org.slf4j:jcl-over-slf4j (source, changelog)	1.7.30 -> 2.0.17
org.slf4j:slf4j-nop (source, changelog)	1.7.30 -> 2.0.17
org.sonarqube	4.0.0.2929 -> 6.2.0.5505
org.asciidoctor.jvm.convert	3.3.2 -> 4.0.4
com.dorongold.task-tree	2.1.1 -> 4.0.1
com.github.gmazzo.buildconfig	3.1.0 -> 5.6.6

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Release Notes

hamcrest/JavaHamcrest (org.hamcrest:hamcrest-library)

v3.0

Breaking Changes

• From version 3.0, the jar distributed to Maven Central is now compiled to Java 1.8 bytecode, and is not compatible with previous versions of Java. See Issue #​331 and PR #​411 for details. Developers who use Java 1.7 earlier can still depend upon hamcrest-2.2.jar.

Improvements

• FileMatchersTest simplification (PR #​389)
• License cleanup (PR #​414, PR #​415, see also #​264, #​355, #​396,and #​399)

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