pkgconf: Add version 3.0.3

[moi15moi]

Add pkgconf to the main bucket.
It is my first time contributing to the project, so even if I tested my changes (with scoop install + .\bin\checkver.ps1 to test the autoupdate), I maybe did an error.

Closes #8283

• Use conventional PR title: <manifest-name[@version]|chore>: <general summary of the pull request>
• I have read the Contributing Guide

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: a6d44b12-6c36-42fd-a8e6-d5ee93201e93

📥 Commits

Reviewing files that changed from the base of the PR and between 20ecead and ec5a15f.

📒 Files selected for processing (1)

• bucket/pkgconf.json

🚧 Files skipped from review as they are similar to previous changes (1)

• bucket/pkgconf.json

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Summary by CodeRabbit

• New Features
  • Added package support for pkgconf version 3.0.3.
  • Added downloads for 32-bit, 64-bit, and ARM64 architectures.
  • Added automatic version checking and update configuration.
  • Included package metadata, executable details, and download verification.

Walkthrough

Adds a Scoop manifest for pkgconf 3.0.3, including metadata, 32-bit/64-bit/ARM64 downloads and hashes, extracted paths, executables, GitHub version detection, and parameterized autoupdate URLs.

Changes

pkgconf Package

Layer / File(s)	Summary
Define pkgconf package manifest bucket/pkgconf.json	Adds pkgconf metadata, architecture-specific download definitions and hashes, extraction directories, executable declarations, a GitHub-based checkver rule, and $version-based autoupdate templates.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title is concise, conventional, and accurately summarizes the main change: adding pkgconf version 3.0.3.
Description check	✅ Passed	The description includes a clear summary, linked issue, and completion checklist, so it mostly matches the required template.
Linked Issues check	✅ Passed	The manifest adds pkgconf with metadata, versioned downloads, checksums, autoupdate, and checkver, matching the package request criteria.
Out of Scope Changes check	✅ Passed	All changes are limited to the new pkgconf manifest and related autoupdate metadata, with no unrelated edits.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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[z-Fng]

/verify

[github-actions]

All changes look good.

Wait for review from human collaborators.

pkgconf

• Lint
• Description
• License
• Hashes
• Checkver
• Autoupdate

Check the full log for details.