fix(cmd): Add pruner flags to LN as well

[renaynay]

Adds --experimental-pruning flag to LN

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 44.78%. Comparing base (2469e7a) to head (eb5c64d).
Report is 87 commits behind head on main.

Files	Patch %	Lines
cmd/node.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3449      +/-   ##
==========================================
- Coverage   44.83%   44.78%   -0.05%     
==========================================
  Files         265      273       +8     
  Lines       14620    15344     +724     
==========================================
+ Hits         6555     6872     +317     
- Misses       7313     7680     +367     
- Partials      752      792      +40     

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