Update aria-fixed semantic-dropdown to fomantic master

[zeripath]

as per comments on #8638

[codecov-io]

Codecov Report

Merging #10096 into master will increase coverage by 0.03%.
The diff coverage is 60.74%.

@@            Coverage Diff             @@
##           master   #10096      +/-   ##
==========================================
+ Coverage   43.45%   43.49%   +0.03%     
==========================================
  Files         566      568       +2     
  Lines       78987    79113     +126     
==========================================
+ Hits        34324    34407      +83     
- Misses      40426    40459      +33     
- Partials     4237     4247      +10

Impacted Files	Coverage Δ
modules/setting/setting.go	44.07% <0%> (-0.07%)	⬇️
cmd/embedded_stub.go	0% <0%> (ø)
routers/repo/branch.go	55.72% <100%> (+0.34%)	⬆️
modules/queue/manager.go	60.51% <100%> (ø)	⬆️
modules/repofiles/action.go	63.45% <100%> (-0.55%)	⬇️
routers/repo/view.go	40% <100%> (+0.52%)	⬆️
modules/repofiles/update.go	39.02% <42.2%> (-0.5%)	⬇️
routers/private/hook.go	36.43% <50%> (+0.42%)	⬆️
modules/setting/cache.go	53.84% <58.82%> (-19.49%)	⬇️
modules/git/commit_info.go	67.8% <63.63%> (-0.99%)	⬇️
... and 12 more

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