Change the download links of the language server files

[DonJayamanne]

Fixes #2180

• Title summarizes what is changing
• Includes a news entry file (remember to thank yourself!)
• Unit tests & code coverage are not adversely affected (within reason)
• Works on all actively maintained versions of Python (e.g. Python 2.7 & the latest Python 3 release)
• Works on Windows 10, macOS, and Linux (e.g. considered file system case-sensitivity)
• [n/a] Dependencies are pinned (e.g. "1.2.3", not "^1.2.3")
• [n/a] package-lock.json has been regenerated if dependencies have changed

[codecov]

Codecov Report

Merging #2181 into master will decrease coverage by 0.37%.
The diff coverage is 76.47%.

@@            Coverage Diff             @@
##           master    #2181      +/-   ##
==========================================
- Coverage   79.98%   79.61%   -0.38%     
==========================================
  Files         308      308              
  Lines       14180    14187       +7     
  Branches     2520     2521       +1     
==========================================
- Hits        11342    11295      -47     
- Misses       2826     2880      +54     
  Partials       12       12

Flag	Coverage Δ
#MacOS	?
#Windows	?

Impacted Files	Coverage Δ
src/client/activation/platformData.ts	84.37% <100%> (+2.89%)	⬆️
src/client/activation/downloader.ts	35.36% <50%> (+10.36%)	⬆️
src/client/common/platform/registry.ts	40.42% <0%> (-51.07%)	⬇️
src/client/common/platform/pathUtils.ts	66.66% <0%> (-33.34%)	⬇️
src/client/common/utils.ts	51.51% <0%> (-21.22%)	⬇️
src/client/common/platform/serviceRegistry.ts	88.88% <0%> (-11.12%)	⬇️
src/client/common/platform/platformService.ts	84.21% <0%> (-5.27%)	⬇️
src/client/common/process/pythonProcess.ts	88.63% <0%> (-4.55%)	⬇️
src/client/interpreter/locators/index.ts	91.48% <0%> (-4.26%)	⬇️
src/client/refactor/proxy.ts	81.05% <0%> (-3.16%)	⬇️
... and 11 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a18631e...863c563. Read the comment docs.