Add rdbms to default install & fix version no.

[Derek Bekoe (derekbekoe)]

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General Guidelines

• The PR has modified HISTORY.rst with an appropriate description of the change (see Modifying change log).

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• [n/a] Each command and parameter has a meaningful description.
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[Codecov (codecov-io)]

Codecov Report

Merging #3246 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3246   +/-   ##
=======================================
  Coverage   70.27%   70.27%           
=======================================
  Files         391      391           
  Lines       25067    25067           
  Branches     3811     3811           
=======================================
  Hits        17616    17616           
+ Misses       6345     6342    -3     
- Partials     1106     1109    +3

Impacted Files	Coverage Δ
...-cli-role/azure/cli/command_modules/role/custom.py	35.74% <0%> (ø)	⬆️
...dback/azure/cli/command_modules/feedback/custom.py	34.69% <0%> (ø)	⬆️
src/azure-cli-core/azure/cli/core/util.py	68.61% <0%> (ø)	⬆️

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