Bump org.apache.maven:maven-compat from 3.3.9 to 3.8.1 in /docs/tutor…

…ial (#68)

Bumps [org.apache.maven:maven-compat](https://github.com/apache/maven) from 3.3.9 to 3.8.1.
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](apache/maven@maven-3.3.9...maven-3.8.1)

---
updated-dependencies:
- dependency-name: org.apache.maven:maven-compat
  dependency-type: direct:development
...

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