next.js

9f181bd1 - [test] Unflake rendering indicator test & skip building indicator tests (#91650)

[test] Unflake rendering indicator test & skip building indicator tests (#91650) [Flakiness metric](https://app.datadoghq.com/ci/test/runs?query=test_level%3Atest%20%40git.repository.id%3A%22github.com%2Fvercel%2Fnext.js%22%20%40test.name%3A%28%22Build%20Activity%20Indicator%20Enabled%20-%20%28app%29%20Shows%20build%20indicator%20when%20page%20is%20built%20from%20modifying%22%20OR%20%22Build%20Activity%20Indicator%20Enabled%20-%20%28pages%29%20Shows%20build%20indicator%20when%20page%20is%20built%20from%20modifying%22%20OR%20%22Dev%20Rendering%20Indicator%20Shows%20build%20indicator%20when%20page%20is%20built%20from%20modifying%22%29%20%40test.status%3Afail&agg_m=count&agg_m_source=base&agg_t=count&fromUser=false&index=citest&start=1773322068865&end=1773926868865&paused=false) In #85083 we introduced a delay of 400 ms before showing the building/rendering indicator, to avoid flashing it for fast operations. For now, we skip the building indicator tests because our simple test apps usually compile much faster than that, and we haven't found a good way to reliably test the indicator without flakiness. We do keep the rendering indicator test, but increase the timeout in the pages to ensure the indicator is shown for long enough to be detected by the test.