tests: move tests top-level

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

tests/exec/undefined/with_pkg_mandatory/cue.mod/module.cue

@@ -0,0 +1 @@
+module: "dagger.cloud/testing"

tests/exec/undefined/with_pkg_mandatory/cue.mod/pkg/dagger.cloud/nonoptional/main.cue

@@ -0,0 +1,20 @@
+package nonoptional
+
+dang: string
+
+#dagger: {
+	compute: [
+		{
+			do:  "fetch-container"
+			ref: "alpine"
+		},
+		{
+			do:  "exec"
+			dir: "/"
+			args: ["sh", "-c", """
+			echo "This test SHOULD fail, because this SHOULD be executed"
+			exit 1
+			"""]
+		},
+	]
+}