Downgrade useless log, lint minor fixes, deps bump

[qfritz]

Hello, in this PR, I downgrade a log to Debug level. This one:

{"time":"2025-02-13T14:13:03.884118599Z","level":"INFO","msg":"get RDS metrics"}
{"time":"2025-02-13T14:13:24.504448328Z","level":"INFO","msg":"get RDS metrics"}
{"time":"2025-02-13T14:14:03.046999696Z","level":"INFO","msg":"get RDS metrics"}
{"time":"2025-02-13T14:14:23.890830936Z","level":"INFO","msg":"get RDS metrics"}
{"time":"2025-02-13T14:15:03.835008265Z","level":"INFO","msg":"get RDS metrics"}
{"time":"2025-02-13T14:15:24.002495683Z","level":"INFO","msg":"get RDS metrics"}

This PR also includes some minor linter fixes and a dependancy bump due to a security vulnerability. This bumps the project to golang 1.22.