Version 6.8.0 release

[prudhvik-docusign]

Changed

• Added support for version v2.1-25.4.01.00 of the DocuSign ESignature API.
• Updated the SDK release version.
• Upgraded jackson-core from 2.17.1 to 2.18.8 and unified all Jackson artifacts under a single version property.
• Upgraded Jersey from 3.1.6 to 3.1.11.
• Upgraded BouncyCastle from 1.78.1 to 1.83, java-jwt from 3.4.1 to 3.19.4, org.json from 20240303 to 20251224.
• Removed unused migbase64 dependency.

Security

• Fixed jackson-core async parser DoS vulnerabilities (GHSA-r7wm-3cxj-wff9, GHSA-72hv-8253-57qq, CVE-2026-59888) that allowed unbounded memory allocation via chunked input bypassing maxNumberLength constraints.