chore: GCForms release v4.18.0

[cds-snc-release-bot]

🤖 I have created a release beep boop

4.18.0 (2026-07-06)

Features

• add PacifiCan branding (#7436) (cc5303b)
• notification v3 (#6824) (1bbae1a)

Bug Fixes

• rework ResponseValidationValues to isolate actual responses from the rest of the type attributes (#7447) (987cf58)
• useEffect loop with GCFormsContext and Formik (#7431) (7809f91)

Miscellaneous Chores

• add default version (#7452) (cb0ed9d)
• add version to vault queries (#7450) (6a88691)
• add version tooltip (#7453) (0a36d52)
• check auth before saving filename (#7406) (67750f9)
• ensure filename gets saved to the db (#7395) (7bca1c8)
• Refactor general update action (#7402) (5351755)
• Refactor template update mutations and actions (#7386) (ec7c706)
• Remove unused api/templates routes (#7398) (ca349f0)
• Template Versioning initial setup (#7407) (2ecdf8c)
• Update content in pause and resume (#7427) (dcfa04f)
• update edit publish links (#7451) (0e741be)
• use template state vs template store for publish check (#7454) (152a0ec)

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