feat(ci): add size-limit and apply it to openapi-fetch

[yoshi2no]

Changes

ref: #1853

• added a workflow named "Size Limit" using size-limit-action to check the size of openapi-fetch on the main branch.
• added a size-limit section to the root package.json and defined the limit.
  • set brotli to false because I believe it’s better to define the limit based on simply minified values.
  • I’ve set the limit to 6.5 kB for now, but I would appreciate your input on what the ideal size should be.
• (optional) added an npm script called size to allow checking the size locally. This is optional, so feel free to remove it if it’s not needed.

  Size limit: 6.5 kB
  Size:       5.96 kB with all dependencies and minified

How to Review

• Ensure that the GitHub Actions bot comments on the PR with the results of size-limit.

Checklist

N/A

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Latest commit: 44fe4ba

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[yoshi2no]

Currently, there are no size-limit-related dependencies in the main branch, which seems to be causing an error 👀

• size-limit
• @size-limit/preset-small-lib

[yoshi2no]

This should be replaced with a more appropriate value.

[drwpow]

Awesome, thank you so much for adding!

Yes I understand these checks do get weird in PRs. But since that check isn’t blocking (currently) it’s fine for now. Thanks again!