* Fix up the 'should replace the existing DOM nodes on iframe navigation with `isAttachIframe`' test (rrweb-io#1636)

- it was working for me when the test was run in isolation (`-t` option), but when the entire cross-origin-iframes test was run, the change of iframe contents didn't seem to happen in time

* [chore]: Update actions/upload-artifact to v4 (rrweb-io#1643)

* update actions/upload-artifact to v4

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Co-authored-by: Eoghan Murray <[email protected]>

* Fix a code path where masking could be skipped on textareas (rrweb-io#1599)

* Fixes rrweb-io#1596

* [chore] Cache yarn packages for CI (rrweb-io#1646)

* [chore] Cache yarn packages for CI

* Cache yarn in release.yml

* [chore] Update deprecated download artifact on CI (rrweb-io#1647)

* I'm merging even though ESLint is stlll failing in Github Actions as I believe it's running actions _without_ this PR applied yet

* Fix env puppeteer error in cross-origin-iframes.test.ts (rrweb-io#1629)

* chore(ci): track bundle size (rrweb-io#1630)

* chore(ci): track bundle size

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Co-authored-by: pauldambra <[email protected]>

* Fix adapt css with split (rrweb-io#1600)

Fix for rrweb-io#1575 where postcss was raising an exception

* adapt the entire CSS as a whole in one pass with postcss, rather than adapting each split part separately
* break up the postcss output again and assign to individual text nodes (kind of inverse of splitCssText at record side)
* impose an upper bound of 30 iterations on the substring searches to preempt possible pathological behavior
* add tests to demonstrate the scenario and prevent regression

More technical details:
* Fix algorithm; checks against `ix_end` within loop were incorrect when `ix_start` was bigger than zero.  
* Fix that length check against wrong array was causing 'should record style mutations with multiple child nodes and replay them correctly' test to fail. 
Note on last point: I haven't looked into things more deeply than that the test was complaining about missing .length after `replayer.pause(1000);`

* Warn instead of fail on exceptions thrown from postcss (rrweb-io#1580)

* postcss was introduced in rrweb-io#1458 for use within adaptCssForReplay
* rrweb-io#1600 fixes the main case where invalid css could be introduced when if valid css from the output of `sheet.cssRules` was split according to how it was split across text nodes of the <style>
* the guard introduced here is still useful as we likely in future will switch to capturing the raw stylesheet contents (both <style> and <link>), at which point we will be much less confident of getting valid css

* Fix splitCssText again (rrweb-io#1640)

Fixes a browser 'lock up' at record time due to a presence of large amounts of css in <style> elements, which are split over multiple text nodes, which triggers the new code added in rrweb-io#1437 (see that PR for full explanation of why this all exists).  rrweb-io#1437 was not written with performance in mind as it was believed to be an edge case, but things like Grammarly browser extension (rrweb-io#1603) among other scenarios were triggering pathological behavior, some of which was solved in rrweb-io#1615.
See also rrweb-io#1640 (comment) for further discussion.

* Fix the case when there are multiple matches and we end up not finding a unique one - just go with the best guess when there are many splits by looking at the previous chunk's size
* Also add '0px' -> '0' stylesheet normalization, which also fixes the sample problem in a different way
* Add new test and modify it so that it can trigger a failure in the absence of the '0px' normalization; there may be other unknown ways of triggering a similar bug, so ensure that the primary 'best guess' method doesn't suffer a regression
* Leverage the 'best guess' method so that we can quit after 100 iterations trying to find a unique substring; hopefully this bit along with the `iterLimit` already added will prevent any future pathological cases.

Failing example extracted from large files identified by Paul D'Ambra (Posthog) ... see comment from MartinWorkfully: PostHog/posthog-js#1668

* fix: move patch function into utils to improve bundling (rrweb-io#1631)

* fix: move patch function into utils to improve bundling

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Co-authored-by: pauldambra <[email protected]>
Co-authored-by: Justin Halsall <[email protected]>

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Co-authored-by: Eoghan Murray <[email protected]>
Co-authored-by: Kevin Townsend <[email protected]>
Co-authored-by: Justin Halsall <[email protected]>
Co-authored-by: Paul D'Ambra <[email protected]>
Co-authored-by: pauldambra <[email protected]>
Co-authored-by: John Henry Gunther <[email protected]>