🌱 cron: Add ability to purge cached results from a CDN

[spencerschrock]

What kind of change does this PR introduce?

cron update

• PR title follows the guidelines defined in our pull request documentation

What is the current behavior?

No CDN usage, so no results purging.

What is the new behavior (if this is a feature change)?**

If configured, the cron worker will purge results from a URL behind a CDN.

• Tests for the changes have been added (for bug fixes/features)

Which issue(s) this PR fixes

NONE

Special notes for your reviewer

Does this PR introduce a user-facing change?

For user-facing changes, please add a concise, human-readable release note to
the release-note

(In particular, describe what changes users might need to make in their
application as a result of this pull request.)

NONE

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 69.71%. Comparing base (353ed60) to head (426fc66).
⚠️ Report is 315 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4928      +/-   ##
==========================================
+ Coverage   66.80%   69.71%   +2.91%     
==========================================
  Files         230      251      +21     
  Lines       16602    15647     -955     
==========================================
- Hits        11091    10909     -182     
+ Misses       4808     3865     -943     
- Partials      703      873     +170     

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