feat(k8s): add support for configurable timeout

[remyleone]

No description provided.

[codecov-commenter]

Codecov Report

Merging #1179 (d4ff152) into master (8f586fd) will decrease coverage by 0.01%.
The diff coverage is 0.00%.

@@            Coverage Diff            @@
##           master   #1179      +/-   ##
=========================================
- Coverage    1.53%   1.52%   -0.02%     
=========================================
  Files          94      95       +1     
  Lines       15265   15432     +167     
=========================================
  Hits          235     235              
- Misses      15007   15174     +167     
  Partials       23      23              

Impacted Files	Coverage Δ
scaleway/helpers_k8s.go	1.73% <0.00%> (ø)
scaleway/resource_k8s_cluster.go	0.00% <0.00%> (ø)
scaleway/resource_k8s_pool.go	0.00% <0.00%> (ø)
scaleway/provider.go	18.14% <0.00%> (-0.09%)	⬇️
...ay/resource_vpc_public_gateway_dhcp_reservation.go	0.00% <0.00%> (ø)

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