Bump gradle to 7.1.1

[Goooler]

Update Gradle 7.1.1 like #7259 did.

[codecov]

Codecov Report

Merging #7307 (6953fd4) into 3.x (5b0dd58) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##                3.x    #7307      +/-   ##
============================================
- Coverage     99.54%   99.53%   -0.01%     
+ Complexity     6786     6782       -4     
============================================
  Files           751      751              
  Lines         47490    47490              
  Branches       6378     6378              
============================================
- Hits          47272    47268       -4     
  Misses           99       99              
- Partials        119      123       +4     

Impacted Files	Coverage Δ
.../operators/flowable/FlowableBlockingSubscribe.java	93.02% <0.00%> (-4.66%)	⬇️
...tivex/rxjava3/internal/jdk8/ParallelCollector.java	93.57% <0.00%> (-4.59%)	⬇️
...va/io/reactivex/rxjava3/subjects/AsyncSubject.java	97.87% <0.00%> (-2.13%)	⬇️
...o/reactivex/rxjava3/processors/AsyncProcessor.java	97.91% <0.00%> (-2.09%)	⬇️
...l/operators/observable/ObservableFlatMapMaybe.java	90.84% <0.00%> (-1.41%)	⬇️
...rnal/operators/flowable/FlowableSequenceEqual.java	98.78% <0.00%> (-1.22%)	⬇️
...ternal/operators/observable/ObservableFlatMap.java	97.51% <0.00%> (-1.07%)	⬇️
...nternal/operators/observable/ObservableCreate.java	99.14% <0.00%> (-0.86%)	⬇️
.../reactivex/rxjava3/observers/BaseTestConsumer.java	99.46% <0.00%> (-0.54%)	⬇️
...a3/internal/operators/flowable/FlowableCreate.java	99.35% <0.00%> (+0.32%)	⬆️
... and 7 more

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