Fix openidConnect source regression from #16544

[zeripath]

Unfortunately there is bug in #16544 meaning that openid connects aren't
being matched properly as the capitalisation in that PR is incorrect.

This PR changes the capitalisation back to what is expected.

Signed-off-by: Andrew Thornton art27@cantab.net

[codecov-commenter]

Codecov Report

Merging #16759 (3171c5c) into main (cee5f7c) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main   #16759      +/-   ##
==========================================
+ Coverage   45.49%   45.51%   +0.01%     
==========================================
  Files         762      762              
  Lines       85939    85939              
==========================================
+ Hits        39099    39115      +16     
+ Misses      40527    40516      -11     
+ Partials     6313     6308       -5     

Impacted Files	Coverage Δ
services/auth/source/oauth2/providers_openid.go	53.33% <100.00%> (ø)
services/pull/pull.go	42.19% <0.00%> (+0.40%)	⬆️
modules/log/file.go	75.20% <0.00%> (+1.60%)	⬆️
modules/queue/workerpool.go	55.72% <0.00%> (+1.90%)	⬆️
modules/charset/charset.go	75.75% <0.00%> (+4.04%)	⬆️
modules/util/timer.go	85.71% <0.00%> (+42.85%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 208ae9e...3171c5c. Read the comment docs.