Add labels to nameserver

[thirdeyenick]

This allows to add pod labels to the nameserver pod which gets created when creating a DNSConfig CR. It allows for a more stable definition of network policies.

[coveralls]

Pull Request Test Coverage Report for Build 12375059948

Details

• 6 of 15 (40.0%) changed or added relevant lines in 2 files are covered.
• 71 unchanged lines in 17 files lost coverage.
• Overall coverage decreased (-0.01%) to 51.393%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
cmd/k8s-operator/nameserver.go	5	9	55.56%
k8s-operator/apis/v1alpha1/zz_generated.deepcopy.go	1	6	16.67%

Files with Coverage Reduction	New Missed Lines	%
k8s-operator/sessionrecording/ws/conn.go	1	84.85%
safesocket/safesocket.go	1	74.47%
cmd/sniproxy/server.go	1	44.02%
net/dns/manager.go	1	82.18%
packages/deb/deb.go	1	87.06%
control/controlhttp/client.go	2	84.26%
net/socks5/socks5.go	2	82.2%
util/syspolicy/rsop/resultant_policy.go	2	94.35%
net/tstun/wrap.go	2	78.87%
control/controlclient/auto.go	3	76.48%

Totals
Change from base Build 12177074491:	-0.01%
Covered Lines:	55981
Relevant Lines:	108927

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💛 - Coveralls