fix(nodebuilder/host): Ensure libp2p metrics are collected to prometheus

[walldiss]

This PR fixes the bug of prometheus registry not being provided to libp2p constructor as well as few additional improvements of adjustment code:

• provide Registrer to libp2p if flag is enabled
• clarify telemetry enabling flag names and avoid overwrites

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 27.77778% with 13 lines in your changes missing coverage. Please review.

Project coverage is 45.70%. Comparing base (2469e7a) to head (1718ae7).
Report is 200 commits behind head on main.

Files with missing lines	Patch %	Lines
cmd/flags_misc.go	0.00%	13 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3753      +/-   ##
==========================================
+ Coverage   44.83%   45.70%   +0.87%     
==========================================
  Files         265      281      +16     
  Lines       14620    16059    +1439     
==========================================
+ Hits         6555     7340     +785     
- Misses       7313     7880     +567     
- Partials      752      839      +87     

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[Wondertan]

@walldiss, did you test it yet to see if it works with Graphana?

[walldiss]

This PR is tested and proven to be working. Fixes related to bitswap metrics initialisation extracted to separate PR:
#3763

[renaynay]

utack