[Bug]: Kubeconfig files written with insecure permissions (0644)

[AR21SM]

Description

Kubeconfig files in pkg/scenarioorchestrator/utils/utils.go (line 108) are written with 0644 permissions, making them world-readable. These files contain sensitive credentials.

Location: pkg/scenarioorchestrator/utils/utils.go:108

err = os.WriteFile(path, flattenedConfig, 0644) 

Expected behavior

Kubeconfig files should be written with 0600 (owner read/write only):

err = os.WriteFile(path, flattenedConfig, 0600)