fix(react-native): remove upgrade command in migration (nrwl#27467)

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## Current Behavior
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Fixes nrwl#27357

packages/react-native/src/migrations/update-18-0-0/add-upgrade-target.spec.ts

@@ -0,0 +1,38 @@
+import { addProjectConfiguration, getProjects, Tree } from '@nx/devkit';
+import { createTreeWithEmptyWorkspace } from '@nx/devkit/testing';
+import update from './add-upgrade-target';
+
+describe('add-upgrade-target', () => {
+  let tree: Tree;
+
+  beforeEach(async () => {
+    tree = createTreeWithEmptyWorkspace({ layout: 'apps-libs' });
+    addProjectConfiguration(tree, 'product', {
+      root: 'apps/product',
+      sourceRoot: 'apps/product/src',
+      targets: {
+        start: {
+          executor: '@nx/react-native:start',
+          options: {},
+        },
+        serve: {
+          executor: 'nx:run-commands',
+          options: {
+            command: 'nx start product',
+          },
+        },
+      },
+    });
+  });
+
+  it(`should add upgrade target`, async () => {
+    await update(tree);
+
+    getProjects(tree).forEach((project) => {
+      expect(project.targets?.['upgrade']).toEqual({
+        executor: '@nx/react-native:upgrade',
+        options: {},
+      });
+    });
+  });
+});

packages/react-native/src/migrations/update-18-0-0/add-upgrade-target.ts

@@ -22,7 +22,6 @@ export default async function update(tree: Tree) {
           executor: '@nx/react-native:upgrade',
           options: {},
         };
-        await runCliUpgrade(workspaceRoot, config.root);
       }
       if (
         config.targets?.['pod-install']?.executor ===