Changes rollup tests to not wipe indices between each test and to hav…

[dbbaughe]

…e more unique index and rollup names

Issue #, if available:

Description of changes:

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

Merging #344 (982f69c) into master (1c7baa1) will decrease coverage by 0.08%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #344      +/-   ##
============================================
- Coverage     75.67%   75.59%   -0.09%     
  Complexity     1332     1332              
============================================
  Files           182      182              
  Lines          6824     6822       -2     
  Branches       1095     1095              
============================================
- Hits           5164     5157       -7     
- Misses         1063     1070       +7     
+ Partials        597      595       -2     

Impacted Files	Coverage Δ	Complexity Δ
...tion/mapping/TransportUpdateRollupMappingAction.kt	62.50% <ø> (-1.30%)	5.00 <0.00> (ø)
...nt/indexstatemanagement/model/destination/Chime.kt	40.90% <0.00%> (-13.64%)	2.00% <0.00%> (-2.00%)
...lup/action/explain/TransportExplainRollupAction.kt	58.33% <0.00%> (-8.34%)	6.00% <0.00%> (ø%)
...ment/rollup/action/get/TransportGetRollupAction.kt	82.35% <0.00%> (-5.89%)	3.00% <0.00%> (ø%)
...icsearch/indexmanagement/IndexManagementIndices.kt	63.33% <0.00%> (-3.34%)	10.00% <0.00%> (ø%)
...ndexstatemanagement/IndexStateManagementHistory.kt	75.96% <0.00%> (-1.93%)	27.00% <0.00%> (-1.00%)
...agement/indexstatemanagement/ManagedIndexRunner.kt	55.65% <0.00%> (+0.61%)	41.00% <0.00%> (ø%)
...adata/TransportUpdateManagedIndexMetaDataAction.kt	88.88% <0.00%> (+3.70%)	10.00% <0.00%> (+1.00%)
...nt/indexstatemanagement/model/destination/Slack.kt	54.54% <0.00%> (+13.63%)	4.00% <0.00%> (+2.00%)

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