fix: better monitoring

[numb3r3]

Does not make sense to enable monitoring default, will remove monitoring from default YAML config. The monitoring port should be provided by the user depending on their environment in production.

[codecov]

Codecov Report

Merging #738 (ef11565) into main (751cf9d) will decrease coverage by 14.22%.
The diff coverage is 66.66%.

@@             Coverage Diff             @@
##             main     #738       +/-   ##
===========================================
- Coverage   80.91%   66.69%   -14.23%     
===========================================
  Files          16       16               
  Lines        1153     1171       +18     
===========================================
- Hits          933      781      -152     
- Misses        220      390      +170     

Flag	Coverage Δ
cas	66.69% <66.66%> (-14.23%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
server/clip_server/executors/clip_tensorrt.py	0.00% <0.00%> (-92.86%)	⬇️
server/clip_server/executors/clip_onnx.py	85.71% <100.00%> (+1.20%)	⬆️
server/clip_server/executors/clip_torch.py	86.95% <100.00%> (+1.24%)	⬆️
server/clip_server/model/clip_trt.py	0.00% <0.00%> (-92.31%)	⬇️
server/clip_server/model/trt_utils.py	0.00% <0.00%> (-83.52%)	⬇️

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[samsja]

As mention in the documentation https://docs.jina.ai/fundamentals/executor/monitoring-executor/#defining-custom-metrics-with-monitor
To respect prometheus naming convention we need to add seconds at the end of the metrics

[numb3r3]

@samsja Thanks for suggestions, have addressed them