Update dependency hashicorp/vault to v1.19.4

[renovate]

This PR contains the following updates:

Package	Update	Change
hashicorp/vault	patch	v1.19.3 -> v1.19.4

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Release Notes

hashicorp/vault (hashicorp/vault)

v1.19.4

Compare Source

1.19.4

May 16, 2025

CHANGES:

• Update vault-plugin-auth-cf to v0.20.1 [GH-30586]
• auth/azure: Update plugin to v0.20.4 [GH-30543]
• core: Bump Go version to 1.24.3.

IMPROVEMENTS:

• Namespaces (enterprise): allow a root token to relock a namespace
• core (enterprise): update to FIPS 140-3 cryptographic module in the FIPS builds.
• core: Updated code and documentation to support FIPS 140-3 compliant algorithms. [GH-30576]
• core: support for X25519MLKEM768 (post quantum key agreement) in the Go TLS stack. [GH-30603]
• ui: Replaces all instances of the deprecated event.keyCode with event.key [GH-30493]

BUG FIXES:

• core (enterprise): fix a bug where plugin automated root rotations would stop after seal/unseal operations
• plugins (enterprise): Fix an issue where Enterprise plugins can't run on a standby node
  when it becomes active because standby nodes don't extract the artifact when the plugin
  is registered. Remove extracting from Vault and require the operator to place
  the extracted artifact in the plugin directory before registration.

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