fix(tracing): initialize server side tracing correctly

[rchl]

The @sentry/tracing package has to be imported so that some tracing extensions are added.
Also forgot to pass tracing option on the server so tracing was never enabled there.

Fixes #508

[codecov]

Codecov Report

Merging #517 (f51d73b) into main (5472233) will decrease coverage by 1.70%.
The diff coverage is n/a.

❗ Current head f51d73b differs from pull request most recent head b948aed. Consider uploading reports for the commit b948aed to get more accurate results

@@            Coverage Diff             @@
##             main     #517      +/-   ##
==========================================
- Coverage   72.88%   71.18%   -1.70%     
==========================================
  Files           1        1              
  Lines          59       59              
  Branches       24       24              
==========================================
- Hits           43       42       -1     
- Misses         13       14       +1     
  Partials        3        3              

Impacted Files	Coverage Δ
lib/module.js	71.18% <0.00%> (-1.70%)	⬇️

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