Update setup.py to cater for all RHEL 8 versions

[jabofh]

• Testing for version.startswith("8.2") breaks on RHEL versions later than 8.2
• RHEL 8.0, not 8.2, changed the default Python version to 3.x

Description

Issue #

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PR information

• The title of the PR is clear and informative.
• There are a small number of commits, each of which has an informative message. This means that previously merged commits do not appear in the history of the PR. For information on cleaning up the commits in your pull request, see this page.
• If applicable, the PR references the bug/issue that it fixes in the description.
• New Unit tests were added for the changes made

Quality of Code and Contribution Guidelines

• I have read the contribution guidelines.

[codecov]

Codecov Report

Merging #2532 (495e145) into develop (eb0c056) will increase coverage by 0.03%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop    #2532      +/-   ##
===========================================
+ Coverage    71.98%   72.02%   +0.03%     
===========================================
  Files          102      102              
  Lines        15197    15197              
  Branches      2404     2404              
===========================================
+ Hits         10940    10945       +5     
+ Misses        3776     3774       -2     
+ Partials       481      478       -3     

Impacted Files	Coverage Δ
azurelinuxagent/ga/collect_telemetry_events.py	91.43% <0.00%> (+1.71%)	⬆️

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[nagworld9]

DCR looks good https://tuxgold.corp.microsoft.com/job/AzLinux/job/DungeonCrawler/job/DungeonCrawler.nnandigam2/47/