fetchneedles: Do a quiet git reset to avoid log spam

[kalikiana]

Follow-up for #3658

See: https://progress.opensuse.org/issues/81180

[codecov]

Codecov Report

Merging #3671 (3e026df) into master (2892223) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3671      +/-   ##
==========================================
- Coverage   96.33%   96.32%   -0.01%     
==========================================
  Files         367      367              
  Lines       31930    31930              
==========================================
- Hits        30761    30758       -3     
- Misses       1169     1172       +3     

Impacted Files	Coverage Δ
lib/OpenQA/Worker/Job.pm	75.03% <0.00%> (-0.48%)	⬇️

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