Cache pagination pages properly

[wordpressfan]

Description

Fixes #7088

Here we are fixing a regression from that PR: #6984

We now can cache pagination pages for terms (categories, tags, custom taxonomies like product_cat for woocommerce, ...etc.)

Type of change

• Bug fix (non-breaking change which fixes an issue).

Detailed scenario

To reproduce this issue, you need to visit a category page starting from the second page in pagination, before this PR, you will find it not cached.

http://example.org/category/uncategorized/page/2/

Technical description

Documentation

We check if we are in a paged page so compare the urls with page query variable to match properly.

New dependencies

No

Risks

Do u know if we have any query variable like paged one or not?

Mandatory Checklist

Code validation

• I validated all the Acceptance Criteria. If possible, provide screenshots or videos.
• I triggered all changed lines of code at least once without new errors/warnings/notices.
• I implemented built-in tests to cover the new/changed code.

Code style

• I wrote a self-explanatory code about what it does.
• I protected entry points against unexpected inputs.
• I did not introduce unnecessary complexity.
• Output messages (errors, notices, logs) are explicit enough for users to understand the issue and are actionnable.

Additional Checks

• In the case of complex code, I wrote comments to explain it.
• When possible, I prepared ways to observe the implemented system (logs, data, etc.).
• I added error handling logic when using functions that could throw errors (HTTP/API request, filesystem, etc.)

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
Report missing for a9d955a1	✅ 75.00% (target: 50.00%)

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (a9d955a)	Report Missing	Report Missing	Report Missing
Head commit (b926f70)	38116	16693	43.80%

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#7089)	4	3	75.00%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

See your quality gate settings    Change summary preferences

_{Codacy stopped sending the deprecated coverage status on June 5th, 2024. Learn more}

Footnotes

1. Codacy didn't receive coverage data for the commit, or there was an error processing the received data. Check your integration for errors and validate that your coverage setup is correct. ↩

[MathieuLamiot]

@wp-media/engineering-plugin-team QA feedback to tackle: https://wp-media.slack.com/archives/CUT7FLHF1/p1730802316824809?thread_ts=1730733341.053669&cid=CUT7FLHF1