Deprecate the otlp/internal package and all sub-packages

[MrAlias]

Part of #3846

This is the last clean up needed to deprecate the otlp/internal package.

• replace use of WrapTracesError with equivalent fmt.Errorf
• Deprecate otlp/internal
  • Ignore lint for all other packages about to be deprecated that import the now deprecated otlp/internal.

The plan is to remove otlp/internal after this has been released.

[codecov]

Codecov Report

Merging #4421 (4c7e314) into main (6631519) will not change coverage.
The diff coverage is 100.0%.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #4421   +/-   ##
=====================================
  Coverage   83.5%   83.5%           
=====================================
  Files        229     229           
  Lines      18679   18679           
=====================================
  Hits       15605   15605           
  Misses      2755    2755           
  Partials     319     319           

Files Changed	Coverage Δ
exporters/otlp/internal/config.go	100.0% <ø> (ø)
exporters/otlp/internal/retry/retry.go	98.3% <ø> (ø)
...orters/otlp/otlpmetric/internal/oconf/envconfig.go	92.0% <ø> (ø)
...xporters/otlp/otlpmetric/internal/oconf/options.go	79.8% <ø> (ø)
exporters/otlp/otlptrace/exporter.go	66.6% <100.0%> (ø)