fix(deps): update module github.com/caddyserver/certmagic to v0.21.4

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
github.com/caddyserver/certmagic	v0.21.3 -> v0.21.4

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Release Notes

caddyserver/certmagic (github.com/caddyserver/certmagic)

v0.21.4

Compare Source

We've made several improvements across the board, notably:

• Storage is temporarily a required field, until we implement a zerossl issuer that doesn't require storage. I'm hoping this will be optional again before v1.0.
• New exported function GetRenewalInfo(), useful for issuers that support ARI.
• Better logging related to account loading and creation, and CSR generation; useful for troubleshooting.
• ACME account registration is now synced across a cluster.
• ARI fetching is now synced across a cluster.
• Normalization fix for IDNs.
• Writes to the filesystem (default) storage now use temporary files, which provides greater concurrency safety. This should improve the very rare and sporadic corrupted certificate or metadata (JSON) files that have been observed and reported.

Thank you to everyone who contributed!

What's Changed

• Move looking up info for HTTP validation to warn level by @​mbardelmeijer in https://github.com/caddyserver/certmagic/pull/290
• Sync ACME account registration by @​mholt in https://github.com/caddyserver/certmagic/pull/293
• fix: use a tempfile to write files in filestorage. by @​elee1766 in https://github.com/caddyserver/certmagic/pull/300
• Add .internal to internal-only hostnames by @​nickubels in https://github.com/caddyserver/certmagic/pull/305

New Contributors

• @​mbardelmeijer made their first contribution in https://github.com/caddyserver/certmagic/pull/290
• @​elee1766 made their first contribution in https://github.com/caddyserver/certmagic/pull/300
• @​nickubels made their first contribution in https://github.com/caddyserver/certmagic/pull/305

Full Changelog: caddyserver/certmagic@v0.21.2...v0.21.4

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[renovate]

ℹ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

• 3 additional dependencies were updated

Details:

Package	Change
github.com/mholt/acmez/v2	v2.0.1 -> v2.0.3
github.com/zeebo/blake3	v0.2.3 -> v0.2.4
golang.org/x/net	v0.27.0 -> v0.29.0