chore(deps): update module github.com/letsencrypt/boulder to v0.20260428.0 (main)

[elastic-renovate-prod]

This PR contains the following updates:

Package	Type	Update	Change	Pending
github.com/letsencrypt/boulder	indirect	minor	v0.20260420.0 -> v0.20260428.0	v0.20260504.0

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Release Notes

letsencrypt/boulder (github.com/letsencrypt/boulder)

v0.20260428.0

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What's Changed

• Supply authz ID in CAA rechecks by @​aarongable in https://github.com/letsencrypt/boulder/pull/8730
• Update go.mod to go1.26 by @​aarongable in https://github.com/letsencrypt/boulder/pull/8727
• db: remove IsNoRows by @​jsha in https://github.com/letsencrypt/boulder/pull/8733
• db: remove MockSQLExecutor by @​jsha in https://github.com/letsencrypt/boulder/pull/8731
• Add gauges for CRL size in bytes and num entries by @​aarongable in https://github.com/letsencrypt/boulder/pull/8720
• ca: rand.Read is infallible by @​jsha in https://github.com/letsencrypt/boulder/pull/8736
• sa: deprecate parallelismPerRPC by @​jsha in https://github.com/letsencrypt/boulder/pull/8728
• sa: check for sql.ErrNoRows on Get() by @​jsha in https://github.com/letsencrypt/boulder/pull/8732

Full Changelog: letsencrypt/boulder@v0.20260420.0...v0.20260428.0

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