Fix timeout to be what it was before. 10 seconds isn't long enough

[rchiodo]

Jim hit this on Friday
I just hit this today trying to test the release branch
We have yet to ship the new timeout, so putting back before we ship.

[codecov-io]

Codecov Report

Merging #8504 into release-2019.11 will increase coverage by 0.32%.
The diff coverage is n/a.

@@                 Coverage Diff                 @@
##           release-2019.11    #8504      +/-   ##
===================================================
+ Coverage            59.14%   59.46%   +0.32%     
===================================================
  Files                  509      509              
  Lines                23390    23390              
  Branches              3774     3779       +5     
===================================================
+ Hits                 13834    13909      +75     
+ Misses                8650     8575      -75     
  Partials               906      906

Impacted Files	Coverage Δ
src/client/language/characters.ts	33.33% <0%> (+2.56%)	⬆️
src/client/common/utils/version.ts	81.48% <0%> (+3.7%)	⬆️
src/client/providers/providerUtilities.ts	88.88% <0%> (+5.55%)	⬆️
src/client/datascience/cellFactory.ts	70.51% <0%> (+12.82%)	⬆️
src/client/api.ts	92.85% <0%> (+14.28%)	⬆️
src/client/common/utils/icons.ts	100% <0%> (+16.66%)	⬆️
...cience/jupyter/jupyterDebuggerNotInstalledError.ts	80% <0%> (+20%)	⬆️
src/client/formatters/serviceRegistry.ts	100% <0%> (+25%)	⬆️
...ience/jupyter/jupyterDebuggerRemoteNotSupported.ts	100% <0%> (+25%)	⬆️
...t/datascience/jupyter/jupyterDataRateLimitError.ts	100% <0%> (+33.33%)	⬆️
... and 2 more

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