chirp_fuse: remove creation flags after mknod (#3971) #183

Job	Run time
build-conda-linux	5m 38s
build-conda-macos-x86_64 (macos-12)	7m 30s
build-conda-macos-arm64 (macos-14)	4m 30s
build-conda-macos-x86_64 (macos-13)	7m 17s
build-native-linux (almalinux8)	5m 55s
lint	28s
build-native-linux (almalinux9)	6m 37s
build-native-linux (ubuntu20.04)	5m 27s
build-native-linux (ubuntu22.04)	4m 47s
build-native-linux (ubuntu24.04)	6m 15s
	54m 24s

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