add warning when all attempts to download OTS have failed

[sagor999]

Description

add warning when all attempts to download OTS have failed.
To help distinguish failed attempt and when all attempts have failed.
See this: #8096 (comment)

Related Issue(s)

Fixes #

How to test

Release Notes

none

Documentation

[aledbf]

LGTM

[codecov]

Codecov Report

Merging #8587 (373db4f) into main (ede9db9) will increase coverage by 17.27%.
The diff coverage is 0.00%.

@@             Coverage Diff             @@
##             main    #8587       +/-   ##
===========================================
+ Coverage   12.31%   29.59%   +17.27%     
===========================================
  Files          20      111       +91     
  Lines        1161    18008    +16847     
===========================================
+ Hits          143     5329     +5186     
- Misses       1014    12219    +11205     
- Partials        4      460      +456     

Flag	Coverage Δ
components-content-service-app	14.19% <0.00%> (?)
components-content-service-lib	14.19% <0.00%> (?)
components-gitpod-cli-app	11.17% <ø> (ø)
components-image-builder-mk3-app	35.71% <ø> (?)
components-local-app-app-darwin-amd64	?
components-local-app-app-darwin-arm64	?
components-local-app-app-linux-amd64	?
components-local-app-app-linux-arm64	?
components-local-app-app-windows-386	?
components-local-app-app-windows-amd64	?
components-local-app-app-windows-arm64	?
components-supervisor-app	35.43% <ø> (?)
components-ws-daemon-app	21.17% <ø> (?)
components-ws-daemon-lib	21.17% <ø> (?)
components-ws-manager-app	39.44% <ø> (?)
components-ws-proxy-app	68.63% <ø> (?)
install-installer-raw-app	4.49% <ø> (?)

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Impacted Files	Coverage Δ
...nts/content-service/pkg/initializer/initializer.go	6.97% <0.00%> (ø)
components/local-app/pkg/auth/auth.go
components/local-app/pkg/auth/pkce.go
components/ws-manager/pkg/manager/probe.go	0.00% <0.00%> (ø)
components/ws-manager/pkg/manager/manager.go	20.28% <0.00%> (ø)
components/ws-daemon/pkg/quota/size.go	87.30% <0.00%> (ø)
components/ws-manager/pkg/manager/annotations.go	68.42% <0.00%> (ø)
components/ws-proxy/pkg/proxy/workspacerouter.go	81.89% <0.00%> (ø)
components/ws-daemon/pkg/content/config.go	33.33% <0.00%> (ø)
components/ws-daemon/pkg/cpulimit/cpulimit.go	68.83% <0.00%> (ø)
... and 86 more

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