Remove redundant line separator after generated table

[hmG3]

Fixes #1640

[codecov-commenter]

Codecov Report

Merging #1650 (8750f4b) into main (216f085) will increase coverage by 0.02%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main    #1650      +/-   ##
==========================================
+ Coverage   83.87%   83.90%   +0.02%     
==========================================
  Files         158      158              
  Lines        4112     4112              
==========================================
+ Hits         3449     3450       +1     
+ Misses        663      662       -1     

Impacted Files	Coverage Δ
megalinter/utils_reporter.py	27.90% <0.00%> (ø)
megalinter/reporters/UpdatedSourcesReporter.py	91.89% <0.00%> (+2.70%)	⬆️

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[nvuillam]

thanks :)