feat: Implement version rollback for server restore

[mmorhun]

What does this PR do?

Implements ability to restore to a different version of Che than deployed operator.
It added several new falgs to server:restore command:
--rollback - finds backup made automatically and restores Che operator to the previous version and restore installation from the backup
--backup-cr - restores Che from given backup described by a backup object (it includes Che version as well)
--version - before restoring Che installation, deploys given version of Che Operator (usually used together with --snapshot-id)

Screenshot/screencast of this PR

What issues does this PR fix or reference?

https://issues.redhat.com/browse/CRW-1497

How to test this PR?

1. Edit latest CSV for OLM stable channel: increment version everywhere, change replace version to the one being replaced. Optionally change operator image.
2. Build test catalog source with the following command:

olm/buildAndPushBundleImages.sh -p openshift -c "stable"  -i quay.io/eclipse/eclipse-che-openshift-opm-catalog:preview -f true

The script should push images to your images registry account. Remember catalog source image name, for example: docker.io/user/eclipse-che-openshift-opm-catalog:preview
3. Open Openshift console, navigate to Administration -> Cluster Settings -> Configuration tab. Scroll to and click on OperatorHub. Switch to Sources tab. Click Create CatalogSource. Fill in the fields with test and put your catalog source image. Click Create button.
4. Create subscription for the real latest version in stable channel (but there is your fake one on top, so it is possible to update to). Example subscription yaml (change startingCSV to real latest stable one):

apiVersion: operators.coreos.com/v1alpha1
kind: Subscription
metadata:
  name: eclipse-che
  namespace: eclipse-che
spec:
  channel: stable
  installPlanApproval: Manual
  name: eclipse-che-preview-openshift
  source: test
  sourceNamespace: openshift-marketplace
  startingCSV: eclipse-che-preview-openshift.v7.36.1

5. Create a checluster object (from terminal or Openshift console).
6. Wait until Che is ready
7. Approve new installation plan: oc get ip, select pending to your fake version install plan and edit it: oc edit ip <install-planname>. Set spec.approved to true.
8. Wait unitl new Operator is deployed and Che is updated. New operator should create a new backup with name like: backup-before-update-to-7-37-0 (the version should be your fake one).
9. Run ./debug server:restore --rollback. Note, you have to stop in olm.ts constructSubscription function and replace sourceName to your catalog source name (test). It might be omitted if your replace exiting catalog source image instead of adding a new one.

PR Checklist

As the author of this Pull Request I made sure that:

• Code produced is complete
• Code builds without errors
• Tests are covering the bugfix
• The repository devfile is up to date and works
• Sections What issues does this PR fix or reference and How to test this PR completed
• Relevant user documentation updated
• Relevant contributing documentation updated
• CI/CD changes implemented, documented and communicated

Reviewers

Reviewers, please comment how you tested the PR when approving it.

[codecov-commenter]

Codecov Report

Merging #1680 (a09a66c) into main (731f31c) will decrease coverage by 0.26%.
The diff coverage is 2.64%.

@@            Coverage Diff             @@
##             main    #1680      +/-   ##
==========================================
- Coverage   11.29%   11.02%   -0.27%     
==========================================
  Files          63       63              
  Lines        6569     6709     +140     
  Branches     1111     1142      +31     
==========================================
- Hits          742      740       -2     
- Misses       5827     5969     +142     

Impacted Files	Coverage Δ
src/api/kube.ts	5.54% <0.00%> (-0.06%)	⬇️
src/commands/server/backup.ts	0.00% <0.00%> (ø)
src/commands/server/deploy.ts	0.00% <0.00%> (ø)
src/commands/server/restore.ts	0.00% <0.00%> (ø)
src/tasks/installers/installer.ts	0.00% <0.00%> (ø)
src/tasks/installers/olm.ts	0.00% <0.00%> (ø)
src/tasks/installers/operator.ts	0.00% <0.00%> (ø)
src/api/context.ts	53.65% <33.33%> (ø)
src/api/backup-restore.ts	41.93% <40.00%> (-0.93%)	⬇️
src/constants.ts	100.00% <100.00%> (ø)

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: mmorhun, tolusha

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[openshift-ci]

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