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/gcp/cloudrun/tests/cloudrun.cue

@@ -0,0 +1,18 @@
+package cloudrun
+
+import (
+	"alpha.dagger.io/gcp"
+	"alpha.dagger.io/gcp/cloudrun"
+)
+
+TestConfig: gcpConfig: gcp.#Config
+
+TestCloudRun: deploy: cloudrun.#Service & {
+	config: TestConfig.gcpConfig
+	name:   "todoapp"
+	image:  "gcr.io/dagger-ci/todoapp:latest"
+	env: {
+		FOO: "foo"
+		BAR: "bar"
+	}
+}