Update to Go 1.25.7, Upgrade node packages

Deep pass on snyk-broker node dependencies to work through all CRITICAL|HIGH vulns

What's Changed

• Upgrade go to 1.25.7 by @shawnburke in #69
• fix vulns in snyk-broker packages by @shawnburke in #70
• Pick up HIGH sev snyk-broker vuln fixes, make trivy blocking. by @shawnburke in #71
• Restore ignore-unfixed, make trivy blocking by @shawnburke in #72
• Add x-broker-ws-response header to relay test curl requests by @shawnburke in #73

Full Changelog: v0.1.7...v0.1.8