feat: add idempotency middleware for HTTP request deduplication #241

Job	Run time
Build	2m 16s
Test - Auditing.Tests	28s
Test - Generic.Tests	31s
Test - Multitenancy.Tests	38s
Test - Identity.Tests	49s
Test - Architecture.Tests	30s
Publish Dev Containers	1m 35s
Publish Release (NuGet + Containers)	0s
	6m 47s

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