GHA: Add build and publish DEBs workflow. #36

Job	Run time
Build DEB (bookworm, amd64) / Build	42s
Build DEB (buster, amd64) / Build	41s
Build DEB (bullseye, amd64) / Build	45s
Build DEB (stretch, amd64) / Build	40s
Meta DEB (deb, bookworm, amd64) / Generate metadata for	9s
Meta DEB (deb, stretch, amd64) / Generate metadata for	5s
Meta DEB (deb, bullseye, amd64) / Generate metadata for	9s
Meta DEB (deb, buster, amd64) / Generate metadata for	3s
Copy to remote DEB (deb, bookworm, amd64) / Copy files using tsh scp	32s
Copy to remote DEB (deb, bullseye, amd64) / Copy files using tsh scp	32s
Copy to remote DEB (deb, buster, amd64) / Copy files using tsh scp	22s
Copy to remote DEB (deb, stretch, amd64) / Copy files using tsh scp	25s
Copy meta to remote DEB (deb, bookworm, amd64) / Sync metadata for libks at /deb-bookworm-amd64-meta	7s
Copy meta to remote DEB (deb, bullseye, amd64) / Sync metadata for libks at /deb-bullseye-amd64-meta	4s
Copy meta to remote DEB (deb, buster, amd64) / Sync metadata for libks at /deb-buster-amd64-meta	3s
Copy meta to remote DEB (deb, stretch, amd64) / Sync metadata for libks at /deb-stretch-amd64-meta	7s
Copy hash to remote DEB (deb, amd64) / Copy files using tsh scp	14s
	5m 40s

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