chore(deps): update module github.com/letsencrypt/boulder to v0.20260518.0 (8.19)

[elastic-renovate-prod]

This PR contains the following updates:

Package	Type	Update	Change
github.com/letsencrypt/boulder	indirect	minor	v0.20260512.0 -> v0.20260518.0

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Release Notes

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

v0.20260518.0

Compare Source

What's Changed

• ct-test-srv: cap tracked submissions by @​mcpherrinm in https://github.com/letsencrypt/boulder/pull/8752
• build(deps): bump the aws group across 1 directory with 3 updates by @​dependabot[bot] inhttps://github.com/letsencrypt/boulder/pull/87466
• sa: getAuthorizationStatuses checks results by @​jsha in https://github.com/letsencrypt/boulder/pull/8726
• Use a unix socket to talk to pkimetal by @​mcpherrinm in https://github.com/letsencrypt/boulder/pull/8715

Full Changelog: letsencrypt/boulder@v0.20260512.0...v0.20260518.0

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