Add deploymentconfig to activate migrations for storkctl

[disrani-px]

What type of PR is this?
Bug

What this PR does / why we need it:

Does this PR change a user-facing CRD or CLI?:
No

Is a release note needed?:

Storkctl: Activating DeploymentConfig for migrations

Does this change need to be cherry-picked to a release branch?:
2.2

[codecov]

Codecov Report

Merging #375 into master will increase coverage by 0.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #375      +/-   ##
==========================================
+ Coverage   72.48%   72.49%   +0.01%     
==========================================
  Files          24       24              
  Lines        2126     2127       +1     
==========================================
+ Hits         1541     1542       +1     
  Misses        453      453              
  Partials      132      132

Impacted Files	Coverage Δ
pkg/storkctl/migration.go	76.95% <100%> (+0.08%)	⬆️

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