Fix typos in deprecation messages #1453

Job	Run time
fuzzing_regressions (debug)	3m 26s
core (5.10.1-noble, ref/heads/main)	16m 42s
fuzzing_regressions (release)	2m 52s
sanitizer_testing (address, debug)	2m 31s
core (5.9.2-focal, SWIFT_BUILD_TEST_HOOK="-Xswiftc -warnings-as-errors", ref/heads/main)	13m 35s
Api Breakage Compared to main branch	1m 41s
sanitizer_testing (address, release)	5m 13s
core (5.8.1-focal, SWIFT_BUILD_TEST_HOOK="-Xswiftc -warnings-as-errors", ref/heads/main)	13m 11s
sanitizer_testing (thread, debug)	2m 36s
sanitizer_testing (thread, release)	4m 39s
	1h 6m 26s

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