init-action: save updated config #4581

Job	Run time
Resolve environment (macos-latest, linked)	2m 10s
Resolve environment (windows-latest, default)	1m 10s
Resolve environment (ubuntu-latest, nightly-latest)	38s
Resolve environment (ubuntu-latest, default)	56s
Resolve environment (ubuntu-latest, linked)	32s
Resolve environment (macos-latest, default)	1m 42s
Resolve environment (windows-latest, linked)	3m 46s
Resolve environment (macos-latest, nightly-latest)	1m 48s
Resolve environment (windows-latest, nightly-latest)	2m 0s
	14m 42s

Provide feedback