feat: support helm

Signed-off-by: vgjm <vgjm456@qq.com>

pkg/universe.dagger.io/x/vgjm456@qq.com/helm/test/test.cue

@@ -0,0 +1,33 @@
+package helm
+
+import (
+	"dagger.io/dagger"
+	"universe.dagger.io/x/vgjm456@qq.com/helm"
+)
+
+dagger.#Plan & {
+	client: {
+		env: KUBECONFIG: string
+		commands: kubeconfig: {
+			name: "cat"
+			args: ["\(env.KUBECONFIG)"]
+			stdout: dagger.#Secret
+		}
+	}
+	actions: test: {
+		URL: helm.#Install & {
+			name:       "test-pgsql"
+			source:     "URL"
+			URL:        "https://charts.bitnami.com/bitnami/postgresql-11.1.12.tgz"
+			kubeconfig: client.commands.kubeconfig.stdout
+		}
+		repository: helm.#Install & {
+			name:       "test-redis"
+			source:     "repository"
+			chart:      "redis"
+			repoName:   "bitnami"
+			repository: "https://charts.bitnami.com/bitnami"
+			kubeconfig: client.commands.kubeconfig.stdout
+		}
+	}
+}