docs: fix minor typo

[rickstaa]

What does this pull request do? Explain your changes. (required)

This commit fixes a minor typo in the developer docs.

Specific updates (required)

• Fixes a minor typo in the doc/development.md page.

How did you test each of these updates (required)

Not needed.

Does this pull request close any open issues?

None.

Checklist:

• Read the contribution guide
• [ ] make runs successfully
• [ ] All tests in ./test.sh pass
• [ ] README and other documentation updated
• [ ] Pending changelog updated

[rickstaa]

@eliteprox sorry for the noise, I made a typo in the previous pull request.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 33.71894%. Comparing base (8d48192) to head (5aa1038).
Report is 5 commits behind head on master.

Additional details and impacted files

@@                 Coverage Diff                 @@
##              master       #3361         +/-   ##
===================================================
- Coverage   33.72602%   33.71894%   -0.00708%     
===================================================
  Files            141         141                 
  Lines          37434       37430          -4     
===================================================
- Hits           12625       12621          -4     
  Misses         24088       24088                 
  Partials         721         721                 

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[eliteprox]

LGTM!