Add support for new Openstack variables

[floreks]

What this PR does / why we need it:
Added support for 2 new Openstack fields.

• instanceReadyCheckPeriod
• instanceReadyCheckTimeout

Related to kubermatic/kubermatic#6139.

Release note:

Add support for 'instanceReadyCheckPeriod' and 'instanceReadyCheckTimeout' to the Openstack provider.

[kubermatic-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: floreks

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• OWNERS [floreks]

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[codecov]

Codecov Report

Merging #2781 (4c861c6) into master (24fa837) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2781      +/-   ##
==========================================
+ Coverage   52.34%   52.35%   +0.01%     
==========================================
  Files         234      234              
  Lines        8222     8224       +2     
  Branches      939      939              
==========================================
+ Hits         4304     4306       +2     
  Misses       3915     3915              
  Partials        3        3              

Impacted Files	Coverage Δ
src/app/shared/entity/node.ts	45.45% <ø> (ø)
src/app/testing/fake-data/node.fake.ts	68.18% <ø> (ø)
src/app/shared/entity/version-info.ts	100.00% <0.00%> (ø)

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[kgroschoff]

/lgtm

[kubermatic-bot]

LGTM label has been added.

Git tree hash: 320d8347bec12683c097470a528fbeebc8b8579e