Patch release for MSSQL 1.2.1

[kaneeldias]

Purpose

Related issue: ballerina-platform/ballerina-library#2625

Added fixes:
#125

Checklist

• Linked to an issue
• Updated the changelog
• Added tests

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (stage-1.2.1@0726dca). Click here to learn what that means.
The diff coverage is n/a.

@@              Coverage Diff               @@
##             stage-1.2.1     #153   +/-   ##
==============================================
  Coverage               ?   86.01%           
  Complexity             ?      125           
==============================================
  Files                  ?       11           
  Lines                  ?      608           
  Branches               ?      121           
==============================================
  Hits                   ?      523           
  Misses                 ?       52           
  Partials               ?       33           

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