ci(fix): osv-scanner PR mode

[shahar-h]

What this PR does / why we need it:
osv-scanner-reusable-pr.yml should be called when workflow is triggered from PR so scan will fail only if new vulnerabilities were introduced. It was renamed by accident to osv-scanner-reusable.yml here.

Release Notes: No

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.90%. Comparing base (45804e2) to head (fe8c337).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5174   +/-   ##
=======================================
  Coverage   66.89%   66.90%           
=======================================
  Files         210      210           
  Lines       32979    32979           
=======================================
+ Hits        22061    22063    +2     
+ Misses       9583     9581    -2     
  Partials     1335     1335           

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[shahar-h]

/retest