Polygon Bor updates to Cosmos SDK v0.2.13 for security and compatibility

Polygon Bor has integrated the latest version of the Cosmos SDK, specifically v0.2.13, which includes important security improvements and the replacement of outdated cryptographic libraries with maintained alternatives. This update also involves updating the build toolchain to ensure compatibility with Go 1.26.5 and addressing known vulnerabilities in dependencies. The change is backward-compatible and does not require a network upgrade, but it enhances the security posture of Polygon's infrastructure. Extensive testing confirms the stability and security of the update, which is crucial for maintaining the integrity of Polygon's ecosystem.