fix: update template .nvmrc to require Node 20.19.0 #1045

Job	Run time
build (ubuntu, legacy-view, kotlin-objc)	1m 29s
build (ubuntu, legacy-module, cpp)	1m 35s
build (macos, nitro-module, kotlin-swift)	1m 36s
build (macos, turbo-module, kotlin-objc)	1m 36s
build (ubuntu, legacy-module, kotlin-objc)	1m 36s
build (ubuntu, nitro-module, kotlin-swift)	1m 32s
build (macos, legacy-module, cpp)	1m 34s
build (ubuntu, legacy-module, kotlin-swift)	1m 31s
build (ubuntu, fabric-view, kotlin-objc)	1m 30s
build (macos, legacy-module, kotlin-objc)	1m 37s
build (ubuntu, legacy-view, kotlin-swift)	1m 25s
build (macos, legacy-module, kotlin-swift)	1m 59s
build (macos, fabric-view, kotlin-objc)	14m 48s
build (ubuntu, turbo-module, kotlin-objc)	3m 40s
build (ubuntu, turbo-module, cpp)	1m 37s
build (ubuntu, library, js)	1m 35s
build (macos, turbo-module, cpp)	1m 36s
build (macos, legacy-view, kotlin-swift)	2m 1s
build (macos, legacy-view, kotlin-objc)	1m 37s
	45m 54s

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