CLSA-2026-1772448804 grafana-pcp: Fix of 3 CVEs

Rebuild against recent Go compiler - CVE-2025-61726: fix net/url excessive memory consumption when parsing large forms with many unique query parameters - CVE-2025-61729: fix crypto/x509 certificate verification allowing excessive resource consumption via HostnameError.Error - CVE-2025-68121: fix...