cue modules: move stdlib to pkg/alpha.dagger.io

In preparation for Europa, we will vendor multiple CUE modules:

- `pkg/alpha.dagger.io`: legacy non-europa packages
- `pkg/dagger.io`: core Europa packages
- `pkg/universe.dagger.io`: Europa universe

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

pkg/alpha.dagger.io/kubernetes/helm/tests/helm.cue

@@ -0,0 +1,57 @@
+package helm
+
+import (
+	"alpha.dagger.io/random"
+	"alpha.dagger.io/dagger"
+)
+
+// We assume that a kinD cluster is running locally
+// To deploy a local KinD cluster, follow this link : https://kind.sigs.k8s.io/docs/user/quick-start/
+TestKubeconfig: dagger.#Input & {string}
+
+TestChartSource: dagger.#Input & {dagger.#Artifact}
+
+// Deploy user local chart
+TestHelmSimpleChart: {
+	suffix: random.#String & {
+		seed:   "simple"
+		length: 5
+	}
+
+	// Deploy chart
+	deploy: #Chart & {
+		name:        "dagger-test-inline-\(suffix.out)"
+		namespace:   "dagger-test"
+		kubeconfig:  TestKubeconfig
+		chartSource: TestChartSource
+	}
+
+	// Verify deployment
+	verify: #VerifyHelm & {
+		chartName: deploy.name
+		namespace: deploy.namespace
+	}
+}
+
+// Deploy remote chart
+TestHelmRepoChart: {
+	suffix: random.#String & {
+		seed:   "repo"
+		length: 5
+	}
+
+	// Deploy remote chart
+	deploy: #Chart & {
+		name:       "dagger-test-repository-\(suffix.out)"
+		namespace:  "dagger-test"
+		kubeconfig: TestKubeconfig
+		repository: "https://charts.bitnami.com/bitnami"
+		chart:      "redis"
+	}
+
+	// Verify deployment
+	verify: #VerifyHelm & {
+		chartName: deploy.name
+		namespace: deploy.namespace
+	}
+}