add persistence.extraVolumeMounts and persistence.extraVolumes to statefulsets

[oker1]

Add options to allow users to define additional mounts in all the statefulsets, i.e. for mounting certificates from secrets for tls setups.

[codecov-commenter]

Codecov Report

Merging #7486 (314e6bf) into master (d99eb3c) will increase coverage by 6.18%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #7486      +/-   ##
============================================
+ Coverage     65.14%   71.33%   +6.18%     
- Complexity     3409     4308     +899     
============================================
  Files          1477     1623     +146     
  Lines         73642    84365   +10723     
  Branches      10804    12657    +1853     
============================================
+ Hits          47972    60178   +12206     
+ Misses        22257    20055    -2202     
- Partials       3413     4132     +719     

Flag	Coverage Δ
integration1	28.78% <ø> (?)
integration2	27.43% <ø> (?)
unittests1	67.88% <ø> (-1.96%)	⬇️
unittests2	14.23% <ø> (-0.28%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ry/optimizer/statement/JsonStatementOptimizer.java	0.00% <0.00%> (-76.48%)	⬇️
.../java/org/apache/pinot/spi/filesystem/PinotFS.java	0.00% <0.00%> (-66.67%)	⬇️
...readers/forward/BaseChunkSVForwardIndexReader.java	46.15% <0.00%> (-46.50%)	⬇️
.../pinot/core/operator/docidsets/BitmapDocIdSet.java	62.50% <0.00%> (-37.50%)	⬇️
.../pinot/spi/exception/BadQueryRequestException.java	66.66% <0.00%> (-33.34%)	⬇️
...ore/operator/query/AggregationGroupByOperator.java	54.54% <0.00%> (-31.17%)	⬇️
...ache/pinot/common/tier/PinotServerTierStorage.java	70.00% <0.00%> (-30.00%)	⬇️
...n/function/BaseSingleInputAggregationFunction.java	76.92% <0.00%> (-23.08%)	⬇️
...inot/core/operator/filter/EmptyFilterOperator.java	57.14% <0.00%> (-22.86%)	⬇️
...query/request/context/utils/QueryContextUtils.java	77.27% <0.00%> (-22.73%)	⬇️
... and 810 more

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