fix: add missing test fixture for versionless root dep test

The deps_with_no_version_root_dep fixture directory was not staged in the
previous commit, causing a NullPointerException in CI when the test tried
to load the resource files.

Implements TC-4128

Assisted-by: Claude Code

Author: ruromero

src/test/resources/tst_manifests/npm/deps_with_no_version_root_dep/npm-ls-stack.json

@@ -0,0 +1,46 @@
+{
+  "version": "1.0.0",
+  "name": "test-app",
+  "dependencies": {
+    "express": {
+      "version": "4.18.2",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.18.2.tgz",
+      "overridden": false,
+      "dependencies": {
+        "accepts": {
+          "version": "1.3.8",
+          "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
+          "overridden": false
+        },
+        "content-type": {
+          "version": "1.0.5",
+          "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.5.tgz",
+          "overridden": false
+        }
+      }
+    },
+    "my-local-lib": {
+      "resolved": "file:../my-local-lib",
+      "overridden": false,
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.21",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+          "overridden": false
+        },
+        "debug": {
+          "version": "4.3.4",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
+          "overridden": false,
+          "dependencies": {
+            "ms": {
+              "version": "2.1.2",
+              "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+              "overridden": false
+            }
+          }
+        }
+      }
+    }
+  }
+}

src/test/resources/tst_manifests/npm/deps_with_no_version_root_dep/package-lock.json

@@ -0,0 +1,9 @@
+{
+  "name": "test-app",
+  "version": "1.0.0",
+  "description": "Test app with a file: dependency that has no version in npm ls output",
+  "dependencies": {
+    "express": "^4.18.0",
+    "my-local-lib": "file:../my-local-lib"
+  }
+}