Log panic stack trace as JSON when JSON logging is enabled

[crenshaw-dev]

Summary

When there are panics in Argo CD components today, they're logged as plain text, even if JSON logging is enabled.

Example (manually added a panic for demonstration):

{"built":"1970-01-01T00:00:00Z","commit":"","level":"info","msg":"ArgoCD API Server is starting","namespace":"argocd","port":8080,"time":"2024-11-24T14:54:08-05:00","version":"v99.99.99+unknown"}
panic: yikes

goroutine 1 [running]:
github.com/argoproj/argo-cd/v2/cmd/argocd-server/commands.NewCommand.func1(0x140008d0000?, {0x107c13006?, 0x4?, 0x107c1300a?})
        /Users/mcrenshaw/go/src/github.com/argoproj/argo-cd/cmd/argocd-server/commands/argocd_server.go:129 +0x200
github.com/spf13/cobra.(*Command).execute(0x14000d70c08, {0x140001aa0b0, 0x9, 0x9})
        /Users/mcrenshaw/go/pkg/mod/github.com/spf13/cobra@v1.8.1/command.go:989 +0x828
github.com/spf13/cobra.(*Command).ExecuteC(0x14000d70c08)
        /Users/mcrenshaw/go/pkg/mod/github.com/spf13/cobra@v1.8.1/command.go:1117 +0x344
github.com/spf13/cobra.(*Command).Execute(...)
        /Users/mcrenshaw/go/pkg/mod/github.com/spf13/cobra@v1.8.1/command.go:1041
main.main()
        /Users/mcrenshaw/go/src/github.com/argoproj/argo-cd/cmd/main.go:67 +0x364

Motivation

Logging utilities work best when all the logs are in the same format.

Proposal

Add a defer/recover to each long-lived Argo CD component to log the panic in the configured format.