Use containerd prefix

[jeffalder]

Overview

AL2023 cgroup v2 no longer has the cgroup v1 file. And containerd uses a different format in the mountinfo file compared to dockerd.

I've verified that the updated regex matches the container ID reported by the infra agent for this pod.

Related Github Issue

n/a

Testing

The agent includes a suite of tests which should be used to
verify your changes don't break existing functionality. These tests will run with
Github Actions when a pull request is made. More details on running the tests locally can be found
here,

Checks

• Your contributions are backwards compatible with relevant frameworks and APIs.
• Your code does not contain any breaking changes. Otherwise please describe.
• Your code does not introduce any new dependencies. Otherwise please describe.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 70.90%. Comparing base (2d0eee2) to head (298b60e).

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2988      +/-   ##
============================================
- Coverage     70.92%   70.90%   -0.03%     
- Complexity    10670    10671       +1     
============================================
  Files           871      871              
  Lines         42931    42931              
  Branches       6498     6498              
============================================
- Hits          30450    30441       -9     
- Misses         9548     9559      +11     
+ Partials       2933     2931       -2     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.