chore: Rename 'opt' to 'opts' in multiple methods

[alexandear]

This PR standardizes parameter naming from opt to opts in multiple service methods. Renaming function parameters does not break compatibility, so this change is safe.

opts is more commonly used throughout the repository:

❯ grep -r 'opt \*' --include='*.go' --exclude-dir=testdata .| wc -l 7
❯ grep -r 'opts \*' --include='*.go' --exclude-dir=testdata .| wc -l 321

[gmlewis]

Thank you, @alexandear!
LGTM.
Merging.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.48%. Comparing base (e1238d0) to head (784db54).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@ Coverage Diff @@## master #3887 +/- ##
=======================================
Coverage 92.48% 92.48% =======================================
Files 200 200 Lines 14564 14564 =======================================
Hits 13469 13469 Misses 895 895 Partials 200 200 

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