tests: Build and run examples as end to end tests #108

Job	Run time
End to end tests (Examples/HelloWorldVapor)	4m 32s
End to end tests (Examples/HelloWorldHummingbird)	2m 54s
Integration tests	1m 17s
Unit tests / Construct unit test matrix	5s
Swift 6 Language Mode / Swift 6 language mode	1m 14s
Soundness / API breakage check	1m 9s
Soundness / Broken symlinks check	4s
Soundness / Documentation check	1m 29s
Soundness / License headers check	2s
Soundness / Python lint check	4s
Soundness / Shell check	38s
Soundness / Format check	35s
Soundness / Unacceptable language check	3s
Soundness / YAML lint check	3s
Unit tests / Unit tests / Linux (6.0)	1m 13s
Unit tests / Unit tests / Linux (nightly-6.0)	1m 28s
Unit tests / Unit tests / Linux (nightly-main)	2m 3s
	18m 53s

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