docs(homepage): auto-update Layer ARN on every release

[rubenfonseca]

Issue number: #1549

Summary

This PR automates the publishing of the layer version in our documetation for every release.
This will reduce maintance overhead, and make the publishing of the new layer version faster.

Changes

Please provide a summary of what's being changed

• Update action-lint to support multiple nested workflow calls https://github.blog/changelog/2022-08-22-github-actions-improvements-to-reusable-workflows-2/
• Added arm64 layers to docs
• Added method to republish docs after a new published Layer

User experience

Please share what the user experience looks like before and after this change

After this change, the new layer version will be update don the documentation automatically, as soon as the Layer is created and published.

Checklist

If your change doesn't seem to apply, please leave them unchecked.

• Meet tenets criteria
• I have performed a self-review of this change
• Changes have been tested
• Changes are documented
• PR title follows conventional commit semantics

Is this a breaking change?

RFC issue number:

Checklist:

• Migration process documented
• Implement warnings (if it can live side by side)

Acknowledgment

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

Disclaimer: We value your time and bandwidth. As such, any pull requests created on non-triaged issues might not be successful.

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View rendered docs/index.md

[heitorlessa]

two minor issues (git add missing docs, and docs alias) - and one major to add comments on shell script as not everyone is a seasoned bash (and regex) wizardry like you ;D

[rubenfonseca]

Note: update the rest of the SAM sample code on docs/index.md

[rubenfonseca]

Note: remove "Can't find our Lambda Layer for your preferred AWS region?" because we are now publishing in all regions.

[heitorlessa]

Docs looks excellent. Perhaps let's just increase md-grid (where the content is) to 90vw to give a bit more room, otherwise the layer per region table will look too tight

[heitorlessa]

looks great! added last suggestions on var names

[heitorlessa]

Consider it approved after these last changes to ease maintenance.