ci: return correct exit code after retrying

[iartemiev]

exit 1 after retrying test instead of allowing job to succeed.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[jordanranz]

LGTM

[codecov]

Codecov Report

Merging #6640 into main will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #6640   +/-   ##
=======================================
  Coverage   73.23%   73.23%           
=======================================
  Files         208      208           
  Lines       12941    12941           
  Branches     2529     2436   -93     
=======================================
  Hits         9477     9477           
- Misses       3272     3301   +29     
+ Partials      192      163   -29     

Impacted Files	Coverage Δ
packages/auth/src/OAuth/OAuth.ts	56.11% <0.00%> (ø)
packages/core/src/Credentials.ts	29.91% <0.00%> (ø)
packages/analytics/src/Analytics.ts	64.81% <0.00%> (ø)
packages/datastore/src/sync/index.ts	15.38% <0.00%> (ø)
packages/datastore/src/sync/outbox.ts	24.48% <0.00%> (ø)
packages/datastore/src/storage/storage.ts	71.66% <0.00%> (ø)
packages/core/src/OAuthHelper/GoogleOAuth.ts	33.33% <0.00%> (ø)
packages/core/src/Util/Reachability.native.ts	37.50% <0.00%> (ø)
packages/xr/src/Providers/SumerianProvider.ts	47.55% <0.00%> (ø)
packages/core/src/OAuthHelper/FacebookOAuth.ts	34.69% <0.00%> (ø)
... and 8 more

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[github-actions]

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