style(docs): apply stricter linting

[dreamorosi]

Summary

Changes

Please provide a summary of what's being changed

This PR resolves all the linting issues resulting from the new rules being introduced in #4545.

Note that I created a dedicated biome.json configuration that extends the root one to disable the noAwait rule which requires you to use the await keyword within an async function, or remove the async from the function.

This is generally desirable, however in our code snippets we purposefully leave most of the function's body empty to focus on the Powertools for AWS utilities, which means we can't always add some async operation just to satisfy the linter.

In this case I'm making an exception and prioritizing DX over correctness of the linter. Let me know if you disagree.

Important

This PR is expected to have failing CI, focus only on the CI steps for this package (examples/snippets). It's safe to merge since it's not going on main but on ci/fix_linting.

Please add the issue number below, if no issue is present the PR might get blocked and not be reviewed

Issue number: closes #4562

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[powertools-for-aws-oss-automation]

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[sdangol]

Looks good! Agree with disabling the rule for this package since it's only the code snippets. There will probably be an async operation when actually using the snippet