cmd/start: Do not use deprecated rand.Seed

As per the method description:
```sh
If Seed is not called, the generator is seeded randomly at program startup.
```

As noticed by a golangci-lint run:

```sh
cmd/start.go:26:4: SA1019: rand.Seed has been deprecated since Go 1.20 and an alternative has been available since Go 1.0: As of Go 1.20 there is no reason to call Seed with a random value. Programs that call Seed with a known value to get a specific sequence of results should use New(NewSource(seed)) to obtain a local random generator. (staticcheck)
                        rand.Seed(time.Now().UnixNano())
                        ^
```

Author: DavidHurta

cmd/start.go

@@ -2,9 +2,6 @@ package main
 
 import (
 	"context"
-	"math/rand"
-	"time"
-
 	"github.com/spf13/cobra"
 	"k8s.io/klog/v2"
 
@@ -22,9 +19,6 @@ func init() {
 			// To help debugging, immediately log version
 			klog.Info(version.String)
 
-			//Setting seed for all the calls to rand methods in the code
-			rand.Seed(time.Now().UnixNano())
-
 			if err := opts.Run(context.Background()); err != nil {
 				klog.Fatalf("error: %v", err)
 			}