Updating extension version to 1.6.49

[kjohn-msft]

This release contains:

• Obsolete packages should not be attempted to install - Extend Composite Logger log functions to have built in buffer #213
• Extend Composite Logger log functions to have built in buffer - Extend Composite Logger log functions to have built in buffer #213
• Reduced set: Safe-deployment enhancements - Reduced set: Safe-deployment enhancements  #223

[codecov]

Codecov Report

Merging #225 (657dbde) into master (b50ef62) will not change coverage.
Report is 1 commits behind head on master.
The diff coverage is 100.00%.

❗ Current head 657dbde differs from pull request most recent head a0dbfdc. Consider uploading reports for the commit a0dbfdc to get more accurate results

@@           Coverage Diff           @@
##           master     #225   +/-   ##
=======================================
  Coverage   90.39%   90.39%           
=======================================
  Files          90       90           
  Lines       14810    14810           
=======================================
  Hits        13387    13387           
  Misses       1423     1423           

Flag	Coverage Δ
python27	90.39% <100.00%> (ø)
python39	90.39% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
src/core/src/bootstrap/Constants.py	98.66% <100.00%> (ø)
src/extension/src/Constants.py	98.06% <100.00%> (ø)