[CRM-14077] Lift PHP cap to <8.4 and add 8.3 to CI

[MichaelEsteves]

Feature overview/Issue description

Part of the wings-api PHP 7.4 → 8.3 upgrade (CRM-14074, deps slice CRM-14077 group 5): this package's <8.3 PHP cap is one of the last composer-level blockers for running wings-api on 8.3.

Summary of changes

• composer.json: PHP constraint >=7.4 <8.3 → >=7.4 <8.4
• CI: PHP 8.3 added to the test matrix (where a matrix exists)

Per the epic's design (D6): constraint-lift + 8.3 CI only — code changes happen only if this package's own 8.3 CI fails.

Blockers

• After merge, please tag a release — wings-api consumes all group-5 lifts in one lock-bump PR once every tag exists.

🤖 Generated with Claude Code

[greptile-apps]

Greptile Summary

This PR lifts the PHP version ceiling in composer.json from <8.3 to <8.4 and adds PHP 8.3 to the CI test matrix, unblocking the wings-api 8.3 upgrade. The constraint and CI coverage are aligned — every permitted PHP version (7.4 through 8.3) is exercised in CI.

• composer.json: "php": ">=7.4 <8.3" → "php": ">=7.4 <8.4". Note: the PR title and description reference <8.5, but the actual change is the more conservative <8.4, which matches CI coverage exactly.
• .github/workflows/pr_test.yml: "8.3" added to the PHP matrix; combined with prefer-lowest and prefer-stable composer variants, the new version gets thorough dependency coverage.

Confidence Score: 5/5

Safe to merge — the two-line change correctly narrows the ceiling to <8.4 and adds 8.3 to CI, giving full coverage of every permitted PHP version.

Both changed files are configuration only. The composer constraint and CI matrix are perfectly aligned: every PHP version the package now accepts (7.4 through 8.3) is exercised in CI with both prefer-lowest and prefer-stable dependency variants. No runtime code was touched.

No files require special attention.

Important Files Changed

Filename	Overview
composer.json	PHP constraint lifted from >=7.4 <8.3 to >=7.4 <8.4; aligns with CI coverage (8.3 is the highest tested version).
.github/workflows/pr_test.yml	PHP 8.3 added to the test matrix; CI now covers every version permitted by the updated composer constraint.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[PHP Version] --> B{Permitted by composer.json?}
    B -- "7.4 – 8.3 ✅" --> C{In CI matrix?}
    B -- "8.4+ ❌ (excluded by <8.4)" --> X[Rejected at install]
    C -- "7.4, 8.0, 8.1, 8.2, 8.3 ✅" --> D[Tested with prefer-lowest + prefer-stable]
    D --> E[CI passes → safe to tag release]

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flowchart TD
    A[PHP Version] --> B{Permitted by composer.json?}
    B -- "7.4 – 8.3 ✅" --> C{In CI matrix?}
    B -- "8.4+ ❌ (excluded by <8.4)" --> X[Rejected at install]
    C -- "7.4, 8.0, 8.1, 8.2, 8.3 ✅" --> D[Tested with prefer-lowest + prefer-stable]
    D --> E[CI passes → safe to tag release]

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_{Reviews (2): Last reviewed commit: "fix: CRM-14077 narrow the lift to <8.4 —..." | Re-trigger Greptile}

[MichaelEsteves]

The red 8.3 CI legs are expected and not a fault in this PR: composer resolution fails because the released rexlabs/utility-belt 4.0.0 still caps php <8.3. Once utility-belt-php#3 merges and tags, re-running this PR's CI should go green — please merge/tag that one first.

🤖 Generated with Claude Code