Fix typo in metric name of monitoring doc

[Fluxx]

Description

There was a typo in the mention of the otecol_exporter_sent_spans metric. The l character was missing, and it should be otelcol_exporter_sent_spans

[linux-foundation-easycla[bot]]

• :white_check_mark: login: TylerHelmuth / name: Tyler Helmuth (d55ca105d0ed40c9891672b7485b73f521ba6da1)
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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 91.67%. Comparing base (c5ee52b) to head (d55ca10). Report is 135 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #10083   +/-   ##
=======================================
  Coverage   91.67%   91.67%           
=======================================
  Files         362      362           
  Lines       16754    16754           
=======================================
  Hits        15359    15359           
  Misses       1056     1056           
  Partials      339      339           

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[github-actions[bot]]

This PR was marked stale due to lack of activity. It will be closed in 14 days.

[github-actions[bot]]

This PR was marked stale due to lack of activity. It will be closed in 14 days.

[github-actions[bot]]

Closed as inactive. Feel free to reopen if this PR is still being worked on.