Tests

Add Etag support to the coming vector/geojson worker refactor. #10725

Job	Run time
Unit tests	2m 39s
Integration tests (ubuntu-latest)	4m 15s
Build tests (windows-latest)	4m 42s
Code Hygiene	2m 20s
Build tests (ubuntu-latest)	3m 12s
Integration tests (windows-latest)	6m 36s
Render tests (ubuntu-latest, 2)	6m 40s
Render tests (ubuntu-latest, 0)	6m 53s
Render tests (ubuntu-latest, 4)	5m 42s
Render tests (windows-latest, 4)	7m 53s
Render tests (windows-latest, 1)	9m 33s
Render tests (ubuntu-latest, 3)	6m 57s
Render tests (ubuntu-latest, 1)	7m 28s
Render tests (windows-latest, 0)	7m 58s
Render tests (windows-latest, 3)	7m 23s
Render tests (windows-latest, 2)	8m 23s
Render tests (windows-latest, 5)	6m 40s
Render tests (ubuntu-latest, 5)	4m 52s
Merge coverage and report	32s
	1h 50m 38s

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