Cut release 3.16.0

[nficca]

Cuts release 3.16.0 which includes bun support and a licensing fix.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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Walkthrough

The changelog replaces the "Unreleased" section header with "3.16.0" to mark a new release and adds a bullet documenting a Licensing bug fix where public domain disclosures were incorrectly matched as GPL. The change set shows +2/-1 lines modified.

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The PR description is minimal and lacks most required template sections including overview detail, acceptance criteria, testing plan, risks, metrics, and references.	Complete the description template by adding detailed overview, acceptance criteria, testing plan, identified risks, relevant metrics, and links to related issues (e.g., #1650).

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'Cut release 3.16.0' directly and clearly describes the primary change - creating a release version 3.16.0.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@Changelog.md`:
- Around line 6-7: The PR reference for the "Licensing: Fix bug where public
domain disclosures were being matched as GPL" entry should be moved onto the
same line as the description so it matches the file's established style; edit
the Changelog.md entry that currently has "Licensing: Fix bug where public
domain disclosures were being matched as GPL" followed by a separate line
"([`#1650`](https://github.com/fossas/fossa-cli/pull/1650))" and merge the PR link
inline at the end of that same bullet (e.g., append
"([`#1650`](https://github.com/fossas/fossa-cli/pull/1650))" to the end of that
sentence) ensuring spacing and punctuation match adjacent entries like the Bun
line.