telemetry: pass otel errors to the otel handler for shutdown and force flush

[jsternberg]

- What I did

Errors returned by otel shutdown and force flush methods are passed to otel.Handle to be determined how or if they'll be printed.

- How I did it

Checked for the error and invoked otel.Handle.

- How to verify it

- Description for the changelog

* Print OTEL errors in the CLI on shutdown

- A picture of a cute animal (not mandatory but encouraged)

[laurazard]

Thanks!

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Project coverage is 59.74%. Comparing base (a4619f3) to head (b1956f5).
Report is 6 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5444      +/-   ##
==========================================
- Coverage   59.75%   59.74%   -0.01%     
==========================================
  Files         345      345              
  Lines       23428    23430       +2     
==========================================
  Hits        13999    13999              
- Misses       8455     8457       +2     
  Partials      974      974              

[thaJeztah]

LGTM