Add a minimal example #16

Job	Run time
Formatting	10s
Clippy	1m 58s
All features	3m 50s
Examples (minimal)	3m 57s
Default features	3m 43s
No features	2m 34s
Feature combos (sidekiq)	2m 48s
Feature combos (db-sql)	3m 16s
Feature combos (open-api)	2m 47s
Feature combos (sidekiq,db-sql)	3m 39s
Feature combos (sidekiq,open-api)	2m 59s
Feature combos (db-sql,open-api)	3m 30s
	35m 11s

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