[#512] adding vital connections logic

[lev-titov]

close https://github.com/odahu/odahu-flow/issues/512

[codecov-commenter]

Codecov Report

Merging #650 (9b8a6e5) into develop (2b4d238) will increase coverage by 10.17%. The diff coverage is 100.00%.

@@             Coverage Diff              @@
##           develop     #650       +/-   ##
============================================
+ Coverage    60.21%   70.39%   +10.17%     
============================================
  Files          241      140      -101     
  Lines        15339     6513     -8826     
  Branches       370      370               
============================================
- Hits          9237     4585     -4652     
+ Misses        5508     1798     -3710     
+ Partials       594      130      -464     

Flag	Coverage Δ
feedback	57.14% <ø> (ø)
go	57.14% <ø> (+4.35%)	:arrow_up:
operator	?
python	70.57% <100.00%> (+0.03%)	:arrow_up:

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ckages/sdk/odahuflow/sdk/models/connection_spec.py	99.02% <100.00%> (+0.07%)	:arrow_up:
...piserver/routes/v1/connection/connection_routes.go
...rver/routes/v1/connection/connection_validation.go
packages/operator/pkg/apiserver/routes/utils.go
packages/operator/pkg/utils/k8s.go
packages/operator/pkg/controller/generic_worker.go
packages/operator/pkg/utils/logger.go
...kages/operator/pkg/repository/util/http/request.go
...rator/pkg/repository/route/postgres/model_route.go
packages/operator/pkg/service/toolchain/service.go
... and 92 more