[exporter/logging] Deprecate 'loglevel' in favor of 'verbosity'

[mx-psi]

Description:

• Add verbosity option
• Deprecate loglevel in favor of verbosity option
• Add warning log if loglevel option is used

Link to tracking Issue: Updates #5878

[codecov]

Codecov Report

Base: 92.06% // Head: 91.81% // Decreases project coverage by -0.24% ⚠️

Coverage data is based on head (7174071) compared to base (ee02bc7).
Patch coverage: 64.81% of modified lines in pull request are covered.

❗ Current head 7174071 differs from pull request most recent head 3ef6fc7. Consider uploading reports for the commit 3ef6fc7 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6334      +/-   ##
==========================================
- Coverage   92.06%   91.81%   -0.25%     
==========================================
  Files         219      231      +12     
  Lines       13242    13455     +213     
==========================================
+ Hits        12191    12354     +163     
- Misses        828      874      +46     
- Partials      223      227       +4     

Impacted Files	Coverage Δ
exporter/loggingexporter/factory.go	88.88% <33.33%> (-11.12%)	⬇️
exporter/loggingexporter/config.go	71.79% <70.27%> (+71.79%)	⬆️
exporter/loggingexporter/logging_exporter.go	79.24% <100.00%> (-0.76%)	⬇️
pdata/plog/pb.go	71.42% <0.00%> (-28.58%)	⬇️
pdata/ptrace/pb.go	71.42% <0.00%> (-28.58%)	⬇️
pdata/pmetric/pb.go	71.42% <0.00%> (-28.58%)	⬇️
pdata/ptrace/json.go	53.33% <0.00%> (-26.67%)	⬇️
pdata/pmetric/json.go	53.33% <0.00%> (-26.67%)	⬇️
pdata/plog/json.go	73.33% <0.00%> (-26.67%)	⬇️
confmap/confmap.go	91.61% <0.00%> (-1.94%)	⬇️
... and 28 more

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