astro 2.0.17

#6391 45501c531 Thanks @bluwy! - Teardown compiler after Vite build to free up memory when rendering pages
#6392 ee8b2a067 Thanks @bluwy! - Run astro sync in build mode
#6368 02a7266e3 Thanks @userquin! - Fix regression that caused some stateful Vite plugins to assume they were running in dev mode during the build and vice versa.
#6358 95164bfdd Thanks @Princesseuh! - Add warning when using headers and encoding in endpoints in SSR