Remove ignoreVersionMismatch from gradle.properties

[RadCod3]

Purpose

Removes ignoreVersionMismatch property from gradle.properties making the build fail if there is a version mismatch between the installed and set ballerina versions.

Examples

Checklist

• Linked to an issue
• Updated the changelog
• Added tests
• Updated the spec
• Checked native-image compatibility

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 29.63%. Comparing base (a82dde5) to head (2e3fb8e).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #33   +/-   ##
=======================================
  Coverage   29.63%   29.63%           
=======================================
  Files           5        5           
  Lines         847      847           
  Branches      250      250           
=======================================
  Hits          251      251           
  Misses        596      596           

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