Add rule to use @Entry macro instead of EnvironmentKeys (#1908) #1737

Job	Run time
command-line-tool (13, latest-stable)	58s
editor-extension (13, latest-stable)	1m 19s
linux (swift:5.3, focal)	34s
macos (12, latest-stable)	8m 22s
linux (swift:5.10, focal)	1m 1s
swiftformat-for-xcode (13, latest-stable)	1m 21s
macos (13, latest-stable)	11m 8s
windows (5.8-RELEASE)	2m 35s
macos (latest, latest-stable)	6m 22s
windows (5.10.1-RELEASE)	2m 4s
	35m 44s

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