chore: bump go directive to 1.25.10 (clears stdlib vulns)

Picks up the latest 1.25.x stdlib patches. Closes the 10 GO-2026-xxxx
stdlib findings flagged by the supply-chain gate (TLS session resumption,
etc.). govulncheck ./... reports 0 callable vulnerabilities after the
bump.

Refs QUA-13.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

Author: LeadGoEngineer

go.mod

@@ -1,6 +1,6 @@
 module github.com/quantcli/crono-export-cli
 
-go 1.25.5
+go 1.25.10
 
 require (
 	github.com/jrmycanady/gocronometer v1.5.1