Follow up `SchedulableExecutor` -> `SchedulingExecutor` rename #1720

Job	Run time
check-bridgejs-generated	5m 48s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	1m 44s
Build for native target (macos-15, Xcode_16.4)	32s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	1m 28s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.0.2-release/ubuntu2204/swift-6.0...	1m 43s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	1m 32s
format	31s
build-examples	2m 53s
deploy-examples	0s
	16m 11s

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