chore(deps): update semaphoreui/semaphore docker tag to v2.18.27

[renovate]

This PR contains the following updates:

Package	Update	Change
semaphoreui/semaphore	patch	v2.18.12 → v2.18.27

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Release Notes

semaphoreui/semaphore (semaphoreui/semaphore)

v2.18.27

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Changelog

• 240e595 fix(templates): validate app

v2.18.26

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• ee781a0 feat(auth): verify current password to fix CWE-620

v2.18.25

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• 7c3789c fix(runners): close connections

v2.18.24

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v2.18.23

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• 74d8dd5 feat(ui): placeholder for enterprise storages

v2.18.22

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• debf7a0 feat(ui): return extra vars for secrets

v2.18.21

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• 2d6e2e3 feat: secure flag for session when https enabled

v2.18.20

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Bugfixes

• Validate playbook path

v2.18.19

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v2.18.19 Release Summary

This patch release includes several important security and validation fixes.

Security fixes

• Added validation for Git repository URLs to prevent Git option injection.
• Added --end-of-options to Git commands to make repository URL and branch handling safer.
• Fixed branch override handling: task-level Git branch override is now applied only when the template explicitly allows it.
• Prevented custom roles from shadowing built-in role slugs such as owner or manager.
• Fixed permission resolution so built-in roles always use their built-in permissions instead of database-defined custom roles.
• Added validation to prevent access keys from being updated with a different ID or moved to another project.

Reliability and tests

• Added tests for Git URL validation and Git command injection protection.
• Added tests for access key update validation.
• Added tests for custom role validation and reserved role slugs.
• Refactored Git branch resolution into a dedicated helper to make task behavior more consistent.

v2.18.18

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v2.18.17

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v2.18.16

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Bugfixes

• Fix variable groups sync functionality

v2.18.15

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v2.18.14

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