Provisioner: customize the 'bootstrap's cmdline param: dns-lookup-family

[izturn]

Signed-off-by: Gang Liu gang.liu@daocloud.io

When running in the v4 environment, the default auto will trigger annoying CoreDNS logs likes:

[Info] 10.21.16.16:38784 - 19433 "AAAA IN xxx, udp 43 false f12" SERVFAIL qr,aa,rd,ra 43 0.0000447s

so add an option to customize it

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 3 lines in your changes missing coverage. Please review.

Project coverage is 81.75%. Comparing base (54ceade) to head (ac93088).
Report is 24 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/provisioner/controller/gatewayclass.go	40.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6699      +/-   ##
==========================================
- Coverage   81.76%   81.75%   -0.01%     
==========================================
  Files         133      133              
  Lines       15944    15953       +9     
==========================================
+ Hits        13037    13043       +6     
- Misses       2614     2617       +3     
  Partials      293      293              

Files with missing lines	Coverage Δ
internal/provisioner/controller/gateway.go	59.40% <100.00%> (+0.34%)	⬆️
internal/provisioner/model/model.go	100.00% <100.00%> (ø)
...nternal/provisioner/objects/dataplane/dataplane.go	87.67% <100.00%> (+0.03%)	⬆️
internal/provisioner/controller/gatewayclass.go	70.35% <40.00%> (-0.79%)	⬇️

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