build and publish multiple images

[thirdeyenick]

This should build and publish the tailscale client, k8s-operator and k8s-nameserver images

[coveralls]

Pull Request Test Coverage Report for Build 12054186471

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 148 unchanged lines in 22 files lost coverage.
• Overall coverage decreased (-0.1%) to 51.297%

---

Files with Coverage Reduction	New Missed Lines	%
k8s-operator/sessionrecording/ws/conn.go	1	84.85%
tsnet/tsnet.go	1	72.39%
derp/derp_server.go	2	72.72%
util/syspolicy/rsop/resultant_policy.go	2	94.35%
safesocket/safesocket.go	2	72.34%
logtail/backoff/backoff.go	2	88.57%
k8s-operator/sessionrecording/fakes/fakes.go	2	75.61%
portlist/poller.go	2	83.78%
control/controlclient/auto.go	3	76.48%
ssh/tailssh/tailssh.go	3	64.43%

Totals
Change from base Build 11592809784:	-0.1%
Covered Lines:	55862
Relevant Lines:	108900

---

💛 - Coveralls