chore: add editorconfig #208

Job	Run time
build-images (ubuntu-soaptools)	15m 10s
build-images (bennu)	11m 51s
build-images (jammy)	12m 1s
build-images (kali-harmonie)	6m 34s
build-images (bookworm)	7m 30s
build-images (noble)	13m 26s
build-images (vyos)	22m 33s
build-images (ot-sim)	10m 22s
build-images (docker-hello-world)	6m 2s
build-images (ntp)	5m 13s
build-images (kali)	10m 22s
build-images (minirouter)	7m 2s
tag-images	0s
release	0s
	2h 8m 6s

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