[bug] go.mod go/toolchain versions are not compatible with current codebase

[5aji]

Description of the bug

Currently, a file uses the Partitioned property of http.Cookie. This was introduced in Go 1.23, and the Dockerfile uses that when building. However, the go.mod file specifies go 1.21 as the minimum supported version, which fails to build.

Step by step instructions to reproduce the bug

Update go.mod to use go 1.23.

Can you replicate that error from the demo?

Not applicable as this error happens during compilation.

Observed behavior

Go build fails with trying to access the Partitioned property of http.Cookie, which does not exist

Expected behavior

Build completes successfully.