Update dependency koa to v2.16.1

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This PR contains the following updates:

Package	Type	Update	Change
koa (source)	dependencies	minor	2.14.1 -> 2.16.1

By merging this PR, the issue #8 will be automatically resolved and closed:

Severity	CVSS Score	Vulnerability
High	7.5	CVE-2025-25200
Medium	5.0	CVE-2025-32379

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Release Notes

koajs/koa (koa)

v2.16.1

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fix: don't render redirect values in anchor ref

v2.16.0

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This is a backported release to fix core underlying issue with HEAD requests when using http2.createSecureServer. See discussion at #​1593 and #​1547.

• fix missing cleanup, if response socket is no longer writeable (issue 1547) (#​1593) 399cb6b

v2.15.4

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Full Changelog: koajs/koa@2.15.3...2.15.4

Fix: avoid redos on host and protocol getter, see GHSA-593f-38f6-jp5m

v2.15.3

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v2.15.2

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v2.15.1

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v2.15.0

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v2.14.2

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File name: package-lock.json