[Redis] Fix issues + new Autorest

[AutorestCI]

Generated from RestAPI PR: Azure/azure-rest-api-specs#989

[codecov-io]

Codecov Report

Merging #1033 into master will decrease coverage by 0.05%.
The diff coverage is 41.82%.

@@            Coverage Diff             @@
##           master    #1033      +/-   ##
==========================================
- Coverage   57.66%   57.61%   -0.06%     
==========================================
  Files        1945     1954       +9     
  Lines       53851    54035     +184     
==========================================
+ Hits        31053    31131      +78     
- Misses      22798    22904     +106

Impacted Files	Coverage Δ
...mt/redis/models/redis_regenerate_key_parameters.py	83.33% <ø> (ø)	✅
...is/azure/mgmt/redis/models/redis_patch_schedule.py	50% <ø> (ø)	✅
...redis/azure/mgmt/redis/models/redis_access_keys.py	100% <ø> (+28.57%)	✅
...s/azure/mgmt/redis/models/export_rdb_parameters.py	62.5% <ø> (ø)	✅
...azure/mgmt/redis/models/redis_create_parameters.py	100% <ø> (ø)	✅
azure-mgmt-redis/azure/mgmt/redis/version.py	100% <ø> (ø)	✅
azure-mgmt-redis/azure/mgmt/redis/init.py	100% <ø> (ø)	✅
...ure-mgmt-redis/azure/mgmt/redis/models/resource.py	100% <ø> (ø)	✅
...azure/mgmt/redis/models/redis_reboot_parameters.py	71.42% <ø> (ø)	✅
...is/azure/mgmt/redis/models/redis_resource_paged.py	80% <ø> (ø)	✅
... and 30 more

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[lmazuel]

Includes #1000