Uses cp -f (force) instead of interactive mode

[nongvantinh]

The init container was failing because the script used yes n | cp -i to copy plugins. The interactive flag (-i) doesn't work reliably in containers, causing the script to fail with set -e.

namespace Jenkins;

internal class JenkinsStack : Pulumi.Stack
{
    public JenkinsStack()
    {
        Pulumi.Config config = new Pulumi.Config();
        string namespaceName = config.Require("namespace");
        string name = config.Require("name");

        // Create namespace
        var ns = new Pulumi.Kubernetes.Core.V1.Namespace(name, new Pulumi.Kubernetes.Types.Inputs.Core.V1.NamespaceArgs
        {
            Metadata = new Pulumi.Kubernetes.Types.Inputs.Meta.V1.ObjectMetaArgs
            {
                Name = namespaceName
            }
        }, new Pulumi.CustomResourceOptions
        {
            RetainOnDelete = namespaceName == "default"
        });

        // Install Jenkins via Helm
        // Note: Jenkins is Tier-0 infrastructure - requires persistent volumes, backups, JCasC
        var jenkinsChart = new Pulumi.Kubernetes.Helm.V4.Chart("jenkins", new Pulumi.Kubernetes.Types.Inputs.Helm.V4.ChartArgs
        {
            Chart = "jenkins",
            Version = "5.8.122", // Use latest stable
            Namespace = ns.Metadata.Apply(m => m.Name),
            RepositoryOpts = new Pulumi.Kubernetes.Types.Inputs.Helm.V4.RepositoryOptsArgs
            {
                Repo = "https://charts.jenkins.io"
            },
            Values = new System.Collections.Generic.Dictionary<string, object>
            {
                ["persistence"] = new System.Collections.Generic.Dictionary<string, object>
                {
                    ["size"] = "50Gi"
                },
                ["controller"] = new System.Collections.Generic.Dictionary<string, object>
                {
                    ["installPlugins"] = new System.Collections.Generic.List<string>
                    {
                        "workflow-aggregator",
                        "git",
                        "kubernetes",
                        "configuration-as-code"
                    }
                }
            },
            ValueYamlFiles = new Pulumi.InputList<Pulumi.AssetOrArchive>
            {
                new Pulumi.FileAsset("Resources/values.yaml")
            }
        }, new Pulumi.ComponentResourceOptions { DependsOn = { ns } });

        // Output Jenkins URL
        JenkinsUrl = Pulumi.Output.Create($"http://jenkins.{namespaceName}.svc.cluster.local:8080");
        NamespaceName = ns.Metadata.Apply(m => m.Name);
    }

    [Pulumi.Output] public Pulumi.Output<string> JenkinsUrl { get; set; }
    [Pulumi.Output] public Pulumi.Output<string> NamespaceName { get; set; }
}

internal class Program
{
    private static System.Threading.Tasks.Task<int> Main() =>
        Pulumi.Deployment.RunAsync<JenkinsStack>();
}

What does this PR do?

• In the Pulumi code above, the installPlugins wasn't empty so Jenkins tried to install it but stuck at the copy stage.
  If you modified files in the ./charts/jenkins/ directory, please also include the following:

Submitter checklist

• I bumped the "version" key in ./charts/jenkins/Chart.yaml.
• I added a new changelog entry to ./charts/jenkins/CHANGELOG.md.
• I followed the technical requirements.
• I ran .github/helm-docs.sh from the project root.

Special notes for your reviewer