Add keep_alive property to collect_logs (#2533)

[kevinclark19a]

(cherry picked from commit 47770b7)

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 #2535 (daeb5eb) into develop (3eda39b) will increase coverage by 0.04%.
The diff coverage is 80.00%.

@@             Coverage Diff             @@
##           develop    #2535      +/-   ##
===========================================
+ Coverage    71.96%   72.00%   +0.04%     
===========================================
  Files          102      102              
  Lines        15188    15192       +4     
  Branches      2403     2403              
===========================================
+ Hits         10930    10939       +9     
+ Misses        3775     3774       -1     
+ Partials       483      479       -4     

Impacted Files	Coverage Δ
azurelinuxagent/ga/collect_logs.py	80.40% <50.00%> (-0.42%)	⬇️
azurelinuxagent/common/interfaces.py	64.28% <100.00%> (+5.95%)	⬆️
azurelinuxagent/ga/update.py	88.39% <100.00%> (ø)
azurelinuxagent/common/utils/fileutil.py	79.69% <0.00%> (+0.75%)	⬆️
azurelinuxagent/ga/collect_telemetry_events.py	91.43% <0.00%> (+1.71%)	⬆️

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