fix: images urls containing ' which are inferSize'd

[Le0Developer]

Changes

' is HTML escaped to ' so the match regex failed.

Fixes #13691

Testing

Tested this myself with the image I originally reported.
Not sure how to add tests for this, the CONTRIBUTING guide only includes how to run tests, but has no details where to add new ones.

Docs

This is a bug fix.

[changeset-bot]

🦋 Changeset detected

Latest commit: 72b80a9

The changes in this PR will be included in the next version bump.

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[codspeed-hq]

CodSpeed Performance Report

Merging #13692 will not alter performance

_{Comparing Le0Developer:fix/issue-13691 (72b80a9) with main (0cd3f32)}

Summary

✅ 6 untouched benchmarks

[ematipico]

@Le0Developer

For tests, we have a fixture here: https://github.com/withastro/astro/tree/main/packages/astro/test/fixtures/core-image you can add an image with the apostrophe and a markdown file that imports it

Then update this file with a new test assertion. You can use the other test assertions to understand how to test yours: https://github.com/withastro/astro/blob/main/packages/astro/test/core-image.test.js

[Le0Developer]

Added a test. Also verified it failed before the patch.