chore(deps): update hashicorp/vault-action action to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
hashicorp/vault-action	action	major	v2.8.0 → v4.0.0

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Release Notes

hashicorp/vault-action (hashicorp/vault-action)

v4.0.0

Compare Source

4.0.0 (May 12, 2026)

Improvements:

• Bump node runtime from node20 to node24 GH-604
• Fix leading slash in secret paths causing HTTP 400 errors (e.g. /cubbyhole/test → v1/cubbyhole/test instead of v1//cubbyhole/test)
• bump jsrsasign from 11.1.0 to 11.1.3
• bump body-parser from 1.20.3 to 1.20.5
• bump qs from 6.13.0 to 6.15.1
• bump http-errors from 2.0.0 to 2.0.1
• bump minimatch from 3.1.2 to 3.1.5
• bump underscore from 1.13.4 to 1.13.8

v4

Compare Source

v3.4.0

Compare Source

3.4.0 (June 13, 2025)

Bugs:

• replace all dot chars during normalization (#​580)

Improvements:

• Prevent possible DoS via polynomial regex (#​583)

v3.3.0

Compare Source

3.3.0 (March 3, 2025)

Features:

• Wildcard secret imports can use ** to retain case of exported env keys GH-545

v3.2.0

Compare Source

3.2.0 (March 3, 2025)

Improvements:

• Add retry for jwt auth login to fix intermittent login failures GH-574

v3.1.0

Compare Source

3.1.0 (January 9, 2025)

Improvements:

• fix wildcard handling when field contains dot GH-542
• bump body-parser from 1.20.0 to 1.20.3
• bump braces from 3.0.2 to 3.0.3
• bump cross-spawn from 7.0.3 to 7.0.6
• bump micromatch from 4.0.5 to 4.0.8

Features:

• secretId is no longer required for approle to support advanced use cases like machine login when bind_secret_id is false. GH-522
• Use pki configuration to generate certificates from Vault GH-564

v3.0.0

Compare Source

3.0.0 (February 15, 2024)

Improvements:

• Bump node runtime from node16 to node20 GH-528

v3

Compare Source

v2.8.1

Compare Source

2.8.1 (February 15, 2024)

Bugs:

• Revert GH-509 which made a backwards incompatible bump of the node runtime from node16 to node20 GH-527

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