update hashicorp/hcl to v2

[fcarrero]

in order to avoid

[github-actions]

👋 Thanks for contributing to Viper! You are awesome! 🎉

A maintainer will take a look at your pull request shortly. 👀

In the meantime: We are working on Viper v2 and we would love to hear your thoughts about what you like or don't like about Viper, so we can improve or fix those issues.

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either by sharing the above link or telling people about this on Twitter:

https://twitter.com/sagikazarmark/status/1306904078967074816

Thank you! ❤️

[CLAassistant]

All committers have signed the CLA.

[kartik-kp]

in order to avoid

We are also facing this issue and waiting for it to being resolved

[dre2004]

Is this going to happen? Looks like the PR has been there for over a year.

[sagikazarmark]

Apologies, but this PR is not going to get merged. Most probably HCL will be removed from the core repo and will be available as an extension for those still using it.

Please see #1608