Update debugger to 1.17.0 packages

[gregg-miskelly]

This update the debugger packages installed by this extension to the 1.17.0 version. It also updates the version number to 1.17.0-beta6.

[codecov]

Codecov Report

Merging #2617 into master will increase coverage by 0.37%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2617      +/-   ##
==========================================
+ Coverage   64.77%   65.14%   +0.37%     
==========================================
  Files          99       99              
  Lines        4318     4318              
  Branches      629      629              
==========================================
+ Hits         2797     2813      +16     
+ Misses       1334     1322      -12     
+ Partials      187      183       -4

Flag	Coverage Δ
#integration	53.3% <ø> (+0.69%)	⬆️
#unit	84.82% <ø> (ø)	⬆️

Impacted Files	Coverage Δ
src/omnisharp/server.ts	70.4% <0%> (+0.68%)	⬆️
src/omnisharp/requestQueue.ts	75.75% <0%> (+3.03%)	⬆️
src/omnisharp/delayTracker.ts	73.68% <0%> (+5.26%)	⬆️
src/features/completionItemProvider.ts	87.87% <0%> (+9.09%)	⬆️
src/features/documentation.ts	47.61% <0%> (+9.52%)	⬆️

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[gregg-miskelly]

This includes fixes for: #2528, #2488, #2483, #2439