go mod: upgrade to latest go

[imjasonh]

No description provided.

[imjasonh]

Do we still need this?

[pjonsson]

The released 0.20.2 binary gets flagged for CVE-2024-34156 by Trivy:

┌─────────┬────────────────┬──────────┬────────┬───────────────────┬────────────────┬───────────────────────────────────────────────────────────┐
│ Library │ Vulnerability  │ Severity │ Status │ Installed Version │ Fixed Version  │                           Title                           │
├─────────┼────────────────┼──────────┼────────┼───────────────────┼────────────────┼───────────────────────────────────────────────────────────┤
│ stdlib  │ CVE-2024-34156 │ HIGH     │ fixed  │ 1.21.12           │ 1.22.7, 1.23.1 │ encoding/gob: golang: Calling Decoder.Decode on a message │
│         │                │          │        │                   │                │ which contains deeply nested structures...                │
│         │                │          │        │                   │                │ https://avd.aquasec.com/nvd/cve-2024-34156                │
└─────────┴────────────────┴──────────┴────────┴───────────────────┴────────────────┴───────────────────────────────────────────────────────────┘

so a Go with a fixed version of stdlib would be appreciated.

[pjonsson]

All the other go.mod files dropped the patch version, is this file meant to still have them?