opentelemetry: use io.opentelemetry.contrib

[v1v]

What does this PR do?

Use https://github.com/open-telemetry/opentelemetry-java-contrib/tree/main/maven-extension since it's now the official project

Checklist

• [ ] This is an enhancement of existing features, or a new feature in existing plugins
  • I have updated CHANGELOG.asciidoc
  • I have added tests that prove my fix is effective or that my feature works
  • Added an API method or config option? Document in which version this will be introduced
  • I have made corresponding changes to the documentation
• [ ] This is a bugfix
  • I have updated CHANGELOG.asciidoc
  • I have added tests that would fail without this fix
• [ ] This is a new plugin
  • I have updated CHANGELOG.asciidoc
  • My code follows the style guidelines of this project
  • I have made corresponding changes to the documentation
  • I have added tests that prove my fix is effective or that my feature works
  • New and existing unit tests pass locally with my changes
  • I have updated supported-technologies.asciidoc
  • Added an API method or config option? Document in which version this will be introduced
  • Added an instrumentation plugin? Describe how you made sure that old, non-supported versions are not instrumented by accident.
• This is something else
  • [ ] I have updated CHANGELOG.asciidoc

Tests

See

[ghost]

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Build stats

• Start Time: 2021-12-08T08:39:22.152+0000

• Duration: 71 min 35 sec

• Commit: c859f47

Test stats 🧪

Test	Results
Failed	0
Passed	2625
Skipped	21
Total	2646

💚 Flaky test report

Tests succeeded.

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[cyrille-leclerc]

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[v1v]

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