chore(deps): update devdependency lerna to v7 (2.x) (#21465)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Daniel Roe <daniel@roe.dev>

package.json

@@ -18,7 +18,7 @@
     "clean:examples": "rimraf examples/*/dist examples/*/.nuxt",
     "clean:test": "rimraf test/fixtures/*/dist test/fixtures/*/.nuxt*/",
     "dev": "jiti ./scripts/dev.js",
-    "postinstall": "lerna link && yarn dev",
+    "postinstall": "yarn dev",
     "lint": "eslint --ext .js,.mjs,.vue,.ts .",
     "lint:app": "eslint-multiplexer eslint --ignore-path packages/vue-app/template/.eslintignore 'test/fixtures/!(missing-plugin)/.nuxt!(-dev)/**' | eslint-multiplexer -b",
     "ls-lint": "npx @ls-lint/ls-lint",
@@ -73,7 +73,7 @@
     "jsdom": "22.1.0",
     "jsonfile": "6.1.0",
     "klaw-sync": "6.0.0",
-    "lerna": "6.6.2",
+    "lerna": "7.0.0",
     "lodash": "4.17.21",
     "node-fetch-native": "1.2.0",
     "puppeteer-core": "20.5.0",