correct CSV name in make downstream

[maskarb]

We don't include the version v in the name of the ClusterServiceVersion downstream. This PR fixes the make downstream command to overwrite the CSV name. spec.replaces and the metadata.name must match, else upgrades won't work. This PR ensures their formats remain consistent.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.13%. Comparing base (b2f892c) to head (64ac08b).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #319   +/-   ##
=======================================
  Coverage   85.13%   85.13%           
=======================================
  Files          13       13           
  Lines        2731     2731           
=======================================
  Hits         2325     2325           
  Misses        325      325           
  Partials       81       81           

Flag	Coverage Δ
unittests	85.13% <ø> (ø)

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