splitcidr-3.3.3

• Built with Go 1.27.3, which includes the fix for CVE-2026-111943 (crypto/x509).
• Version now matches ipinfo; all CLIs are released together.
• Dropped the 32-bit Windows ARM (windows_arm) build, which Go no longer supports.
• Errors now go to stderr instead of stdout.
• Windows release zip now contains splitcidr.exe instead of the versioned filename.
• Install scripts (deb.sh, windows.ps1) now fail loudly when installation does not succeed.