Remove deprecated jaeger-grpc monitor

[dmitryax]

OTel Jaeger receiver should be used instead. To use it with the same port used by default by the jaeger-grpc monitor, apply the following config:

receivers:
  jaeger:
    protocols:
      grpc:
        endpoint: localhost:14250

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 34.21%. Comparing base (810d29d) to head (5475aa5).

❌ Your project check has failed because the head coverage (34.21%) is below the target coverage (40.00%). You can increase the head coverage or adjust the target coverage.

❗ There is a different number of reports uploaded between BASE (810d29d) and HEAD (5475aa5). Click for more details.

HEAD has 33 uploads less than BASE

Flag	BASE (810d29d)	HEAD (5475aa5)
	36	3

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6601      +/-   ##
==========================================
- Coverage   43.98%   34.21%   -9.77%     
==========================================
  Files         376      341      -35     
  Lines       26520    24589    -1931     
==========================================
- Hits        11665     8414    -3251     
- Misses      14027    15595    +1568     
+ Partials      828      580     -248     

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