SA1029 not reporting when using empty struct as context key.

[meblum]

• 'staticcheck -version' v0.4.7
• The output of 'staticcheck -debug.version' (it is fine if this command fails)
• 'go version' go1.22.0 windows/amd64
• The output of 'go env'
• Exactly which command you ran staticcheck
• Output of the command and what's wrong with the output
• Where we can read the code you're running Staticcheck on _ = context.WithValue(context.Background(), struct{}{}, "myvalue")