[content-service] Start snapshots from-other

[csweichel]

to make the tasks behave like a workspace restart.

This change makes snapshots behave as documented.

fixes #4894

How to test

1. Open https://csweichel-init-command-beeing-run-4894.staging.gitpod-dev.com#snapshot/3c239bd3-d3ff-4399-9ffe-e419ac99858a
2. cat /workspace/.gitpod/ready should be from-backup

[codecov]

Codecov Report

Merging #4905 (4964b53) into main (08a23d9) will increase coverage by 32.69%.
The diff coverage is 0.00%.

@@            Coverage Diff            @@
##           main    #4905       +/-   ##
=========================================
+ Coverage      0   32.69%   +32.69%     
=========================================
  Files         0       69       +69     
  Lines         0    13735    +13735     
=========================================
+ Hits          0     4491     +4491     
- Misses        0     8828     +8828     
- Partials      0      416      +416     

Flag	Coverage Δ
components-content-service-app	14.46% <0.00%> (?)
components-content-service-lib	14.46% <0.00%> (?)
components-image-builder-app	34.44% <ø> (?)
components-supervisor-app	36.23% <ø> (?)
components-ws-daemon-app	22.29% <ø> (?)
components-ws-manager-app	36.81% <ø> (?)
components-ws-proxy-app	67.06% <ø> (?)

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

Impacted Files	Coverage Δ
...onents/content-service/pkg/initializer/snapshot.go	0.00% <0.00%> (ø)
components/ws-proxy/pkg/proxy/workspacerouter.go	81.73% <0.00%> (ø)
components/ws-daemon/pkg/quota/sandbox_linux.go	0.00% <0.00%> (ø)
components/supervisor/pkg/ports/ports.go	60.38% <0.00%> (ø)
components/ws-daemon/pkg/quota/mounts.go	53.19% <0.00%> (ø)
...onents/ws-daemon/pkg/internal/session/workspace.go	50.73% <0.00%> (ø)
components/content-service/pkg/storage/minio.go	0.00% <0.00%> (ø)
components/ws-manager/pkg/manager/annotations.go	66.66% <0.00%> (ø)
components/ws-manager/pkg/manager/status.go	70.84% <0.00%> (ø)
...nts/content-service/pkg/service/content-service.go	0.00% <0.00%> (ø)
... and 60 more

---

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[svenefftinge]

works nicely :-)

[roboquat]

LGTM label has been added.

Git tree hash: 87d67a272a869db8b6b53de0f2be88c33dd68fad

[roboquat]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: csweichel, svenefftinge

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