Add support for unix domain sockets #453

Job	Run time
Build (amd64)	5m 5s
License Compliance Check	2m 7s
Build (arm64)	5m 8s
Build (riscv64)	2m 40s
Check links in markdown	26s
Build Kuksa lib	2m 3s
Lint	2m 49s
Run unit tests	4m 23s
Check access rights / check_ghcr_push	1s
Create multiarch container	37s
Run integration test (arm64)	18s
Run integration test (amd64)	17s
Run integration test (riscv64)	22s
	26m 16s

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