fix: move worker-config from values.yaml volumeMount to statefulset.yaml volumeMount

[shree-iyengar-dls]

Fixes #1451

Tested on p48:

• created a new PVC which was referenced in the p48-blueapi-0 pod under volumes:

 name: my-pv-claim
    persistentVolumeClaim:
      claimName: my-pv-claim

• The PV was also bound:

pvc-905772f8-0fe1-4d8d-8186-4838473eb289      1Gi        RWX            Delete           Bound       p48-beamline/my-pv-claim

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.30%. Comparing base (8820bbe) to head (620aff4).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1527   +/-   ##
=======================================
  Coverage   95.30%   95.30%           
=======================================
  Files          43       43           
  Lines        3198     3198           
=======================================
  Hits         3048     3048           
  Misses        150      150           

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