Download certs from security plugin instead of having a local copy

[cwperks]

Description

Download certs from security repo instead of having a local copy in this repo.

Testing out this same pattern that the sql plugin uses to reduce copies of the demo certs across plugin repos.

Check List

• New functionality includes testing.
• New functionality has been documented.
• API changes companion pull request created.
• Commits are signed per the DCO using --signoff.
• Public documentation issue/PR created.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.06%. Comparing base (f62885a) to head (a406de9).

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #1360   +/-   ##
=========================================
  Coverage     80.05%   80.06%           
- Complexity     5669     5672    +3     
=========================================
  Files           533      533           
  Lines         23430    23430           
  Branches       2334     2334           
=========================================
+ Hits          18758    18760    +2     
- Misses         3562     3563    +1     
+ Partials       1110     1107    -3     

Flag	Coverage Δ
plugin	80.06% <ø> (+<0.01%)	⬆️

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see 7 files with indirect coverage changes