Fix UniRepeat#until javadoc

[gwenneg]

Unless I misunderstood something, the Javadoc should contain this.

[cescoffier]

Thanks, great catch!

[codecov]

Codecov Report

Merging #676 (9c1c310) into main (b7680b3) will increase coverage by 0.16%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##               main     #676      +/-   ##
============================================
+ Coverage     90.07%   90.24%   +0.16%     
- Complexity     2986     2991       +5     
============================================
  Files           374      374              
  Lines         11764    11764              
  Branches       1476     1478       +2     
============================================
+ Hits          10597    10616      +19     
+ Misses          595      590       -5     
+ Partials        572      558      -14     

Impacted Files	Coverage Δ
...main/java/io/smallrye/mutiny/groups/UniRepeat.java	100.00% <ø> (ø)
...ava/io/smallrye/mutiny/helpers/HalfSerializer.java	77.77% <0.00%> (-11.12%)	⬇️
.../io/smallrye/mutiny/helpers/queues/DrainUtils.java	82.22% <0.00%> (-8.89%)	⬇️
...mallrye/mutiny/helpers/queues/MpscLinkedQueue.java	90.32% <0.00%> (-8.07%)	⬇️
...subscription/SwitchableSubscriptionSubscriber.java	95.08% <0.00%> (-2.46%)	⬇️
...smallrye/mutiny/helpers/test/AssertSubscriber.java	90.22% <0.00%> (-1.51%)	⬇️
...mallrye/mutiny/operators/multi/MultiGroupByOp.java	83.70% <0.00%> (+0.88%)	⬆️
...lrye/mutiny/subscription/SerializedSubscriber.java	83.01% <0.00%> (+0.94%)	⬆️
...smallrye/mutiny/operators/multi/MultiEmitOnOp.java	90.47% <0.00%> (+0.95%)	⬆️
...a/io/smallrye/mutiny/helpers/BlockingIterable.java	89.79% <0.00%> (+1.02%)	⬆️
... and 9 more

[jponge]

Thanks @gwenneg