Add sql trigger e2e test

[lucyzhang929]

Description

Fixes Azure/azure-functions-sql-extension#936
Adding a test for sql input, output, and trigger.

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PR information

• The title of the PR is clear and informative.
• There are a small number of commits, each of which has an informative message. This means that previously merged commits do not appear in the history of the PR. For information on cleaning up the commits in your pull request, see this page.
• If applicable, the PR references the bug/issue that it fixes in the description.
• New Unit tests were added for the changes made and CI is passing.

Quality of Code and Contribution Guidelines

• I have read the contribution guidelines.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.10%. Comparing base (c68f88b) to head (ae53ce3).

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #1375   +/-   ##
=======================================
  Coverage   85.10%   85.10%           
=======================================
  Files          35       35           
  Lines        1974     1974           
  Branches      374      374           
=======================================
  Hits         1680     1680           
  Misses        218      218           
  Partials       76       76           

Flag	Coverage Δ
unittests	85.05% <ø> (ø)

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.23%. Comparing base (8ebd94e) to head (a8b861a).

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #1375      +/-   ##
==========================================
+ Coverage   85.08%   85.23%   +0.15%     
==========================================
  Files          35       35              
  Lines        1998     1998              
  Branches      378      378              
==========================================
+ Hits         1700     1703       +3     
+ Misses        222      219       -3     
  Partials       76       76              

Flag	Coverage Δ
unittests	85.18% <ø> (+0.15%)	⬆️

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

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