Change container base image to cgr.dev/chainguard/static (#2881)

* Change container base image to cgr.dev/chainguard/static
* Lint fixes
* fix test failure
* Add router deployment wait
* add check command in upgrade script

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Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

pkg/executor/reaper/reaper.go

@@ -218,7 +218,7 @@ func CleanupHpa(ctx context.Context, logger *zap.Logger, client kubernetes.Inter
 
 func GetReaperNamespace() map[string]string {
 	ns := utils.DefaultNSResolver()
-	//to support backward compatibility we need to cleanup deployment and rolebinding created in function, buidler and default namespace as well
+	// to support backward compatibility we need to cleanup deployment and rolebinding created in function, buidler and default namespace as well
 	fissionResourceNs := ns.FissionNSWithOptions(utils.WithBuilderNs(), utils.WithFunctionNs(), utils.WithDefaultNs())
 	return fissionResourceNs
 }