Add deprecation warnings #278

Job	Run time
Soundness / Check generated code	1m 17s
Soundness / Swift license headers check	9s
Unit tests / Construct unit test matrix	7s
Construct Examples matrix	5s
Cxx interop / Construct Cxx interop matrix	4s
Benchmarks / Construct Benchmarks matrix	6s
Soundness / API breakage check	1m 25s
Soundness / Python lint check	11s
Soundness / Shell check	38s
Soundness / Documentation check	1m 36s
Soundness / YAML lint check	4s
Soundness / Format check	39s
Soundness / Broken symlinks check	5s
Soundness / Unacceptable language check	6s
Soundness / Check imports have access level	4s
Soundness / License headers check	4s
Static SDK / Static SDK / Linux (main Jammy)	2m 27s
Static SDK / Static SDK / Linux (latest-release Jammy)	1m 55s
Cxx interop / Cxx interop / Linux (6.1)	1m 17s
Cxx interop / Cxx interop / Linux (6.0)	1m 7s
Cxx interop / Cxx interop / Linux (nightly-next)	1m 9s
Cxx interop / Cxx interop / Linux (nightly-main)	1m 14s
Examples / Linux (6.1)	22m 22s
Examples / Linux (nightly-main)	31m 51s
Examples / Linux (6.0)	23m 46s
Examples / Linux (nightly-next)	31m 50s
Benchmarks / Benchmarks / Linux (6.0)	2m 40s
Benchmarks / Benchmarks / Linux (nightly-main)	2m 47s
Benchmarks / Benchmarks / Linux (nightly-next)	3m 0s
Benchmarks / Benchmarks / Linux (6.1)	2m 18s
Unit tests / Unit tests / Linux (nightly-next)	2m 2s
Unit tests / Unit tests / Linux (nightly-main)	2m 2s
Unit tests / Unit tests / Linux (6.0)	1m 43s
Unit tests / Unit tests / Linux (6.1)	1m 41s
	2h 23m 51s

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