Bump archunit.version from 0.11.0 to 0.12.0

Bumps `archunit.version` from 0.11.0 to 0.12.0.

Updates `archunit-junit5-api` from 0.11.0 to 0.12.0
- [Release notes](https://github.com/TNG/ArchUnit/releases)
- [Commits](TNG/ArchUnit@v0.11.0...v0.12.0)

Updates `archunit-junit5-engine` from 0.11.0 to 0.12.0
- [Release notes](https://github.com/TNG/ArchUnit/releases)
- [Commits](TNG/ArchUnit@v0.11.0...v0.12.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

pom.xml

@@ -54,7 +54,7 @@
     <junit-platform-launcher.version>1.5.2</junit-platform-launcher.version>
     <mockito.version>3.1.0</mockito.version>
     <assertj.version>3.14.0</assertj.version>
-    <archunit.version>0.11.0</archunit.version>
+    <archunit.version>0.12.0</archunit.version>
     <json-unit-fluent.version>2.11.1</json-unit-fluent.version>
     <xmlunit.version>1.6</xmlunit.version>
     <jsoup.version>1.12.1</jsoup.version>