onetbb: add 2021.12.0

[Nekto89]

Specify library name and version: onetbb/2021.12.0

---

• I've read the contributing guidelines.
• I've used a recent Conan client version close to the currently deployed.
• I've tried at least one configuration locally with the conan-center hook activated.

[conan-center-bot]

Conan v1 pipeline ❌

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Motivation: Updating Jenkins plugins

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Conan v2 pipeline ❌

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The v2 pipeline failed. Please, review the errors and note this is required for pull requests to be merged. In case this recipe is still not ported to Conan 2.x, please, ping @conan-io/barbarians on the PR and we will help you.

See details:

Sorry, the system is under maintenance and it doesn't accept builds right now.

Motivation: Updating Jenkins plugins

Please, check https://status.conan.io to obtain more information.
Thanks for your understanding and help with the Conan Center Index!

[ghost]

I detected other pull requests that are modifying onetbb/all recipe:

• add onetbb/2021.11.0 #20813

This message is automatically generated by https://github.com/ericLemanissier/conan-center-conflicting-prs so don't hesitate to report issues/improvements there.