certificate_packs: add Status field

[cofyc]

Description

This field is essential for automating tasks related to certificate packs. For instance, upon creating a certificate pack, the validation process must be repeatedly initiated until the status transitions to active.

Has your change been tested?

Explain how the change has been tested and what you ran to confirm your
change affects other parts of the code. Automated tests are generally
expected and changes without tests should explain why they aren't
required.

Screenshots (if appropriate):

Types of changes

What sort of change does your code introduce/modify?

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.
• This change is using publicly documented (api.cloudflare.com or developers.cloudflare.com) and stable APIs.

[github-actions]

changelog detected ✅

[codecov-commenter]

Codecov Report

Merging #1271 (f72d69a) into master (0c3db86) will decrease coverage by 0.14%.
The diff coverage is 40.90%.

@@            Coverage Diff             @@
##           master    #1271      +/-   ##
==========================================
- Coverage   49.23%   49.10%   -0.14%     
==========================================
  Files         131      133       +2     
  Lines       12665    12987     +322     
==========================================
+ Hits         6236     6377     +141     
- Misses       4988     5125     +137     
- Partials     1441     1485      +44     

Impacted Files	Coverage Δ
access_application.go	76.52% <ø> (ø)
access_organization.go	64.70% <ø> (ø)
access_policy.go	76.31% <ø> (ø)
certificate_packs.go	50.90% <ø> (ø)
cloudflare.go	67.28% <ø> (ø)
dns.go	45.05% <0.00%> (-28.16%)	⬇️
errors.go	40.78% <ø> (ø)
rulesets.go	34.64% <0.00%> (-0.35%)	⬇️
ssl.go	72.72% <ø> (ø)
regional_hostnames.go	36.11% <36.11%> (ø)
... and 2 more

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[jacobbednarz]

thanks for the PR @cofyc 🙇

[github-actions]

This functionality has been released in v0.66.0.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!