feat(tests): add unittests for template generation

[chmouel]

Added unit tests for the detectLanguage and genTmpl functions in the template_test.go file. These tests cover various scenarios for detecting programming languages and generating templates based on repository content and events.

Changes

Submitter Checklist

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[savitaashture]

/test

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 64.97%. Comparing base (343e197) to head (e98abc9). Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1797      +/-   ##
==========================================
+ Coverage   64.92%   64.97%   +0.05%     
==========================================
  Files         175      175              
  Lines       13399    13398       -1     
==========================================
+ Hits         8699     8706       +7     
+ Misses       4116     4110       -6     
+ Partials      584      582       -2     

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