Bump version number to 1.24.0 #2628

Job	Run time
License Header and Formatting Checks	2m 43s
Performance Tests on swiftlang/swift:nightly-jammy	3m 4s
Build and Test on swiftlang/swift:nightly-jammy	2m 8s
Performance Tests on swift:6.0-jammy	3m 10s
Integration Tests on swiftlang/swift:nightly-jammy	4m 25s
Build and Test on swift:6.0-jammy	4m 29s
Integration Tests on swift:6.0-jammy	6m 26s
Performance Tests on swift:5.10.1-noble	32s
Build and Test on swift:5.10.1-noble	4m 10s
Performance Tests on swift:5.9-jammy	31s
Integration Tests on swift:5.10.1-noble	5m 20s
Build and Test on swift:5.9-jammy	3m 24s
Integration Tests on swift:5.9-jammy	4m 15s
	44m 37s

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