ignore firewall packets reset error, check enable firewall config flag and extend cgroup extension monitoring expiry time

[nagworld9]

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 #2509 (ef5fca7) into develop (2939a14) will decrease coverage by 0.00%.
The diff coverage is 75.00%.

@@             Coverage Diff             @@
##           develop    #2509      +/-   ##
===========================================
- Coverage    71.86%   71.85%   -0.01%     
===========================================
  Files          101      101              
  Lines        15110    15112       +2     
  Branches      2396     2397       +1     
===========================================
  Hits         10859    10859              
- Misses        3766     3767       +1     
- Partials       485      486       +1     

Impacted Files	Coverage Δ
azurelinuxagent/common/conf.py	79.31% <0.00%> (ø)
azurelinuxagent/common/osutil/default.py	59.27% <100.00%> (-0.22%)	⬇️
azurelinuxagent/ga/update.py	88.61% <100.00%> (+0.02%)	⬆️

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[narrieta]

LGTM, minor typo

[narrieta]

"with only the ones"?

[nagworld9]

fixed