feat(server-core): update flatted -> 3.4.2 (#8478)

Author: gg-wis

.changeset/mighty-rice-hear.md

@@ -0,0 +1,6 @@
+---
+'@modern-js/app-tools': patch
+'@modern-js/server-core': patch
+---
+
+Update to address flatted crit cve https://security.snyk.io/vuln/SNYK-JS-FLATTED-15700433

packages/server/core/package.json

@@ -77,7 +77,7 @@
     "@web-std/file": "^3.0.3",
     "@web-std/stream": "^1.0.3",
     "cloneable-readable": "^3.0.0",
-    "flatted": "^3.4.0",
+    "flatted": "^3.4.2",
     "hono": "^4.11.7",
     "ts-deepmerge": "7.0.3"
   },

packages/solutions/app-tools/package.json

@@ -105,7 +105,7 @@
     "esbuild": "0.25.5",
     "esbuild-register": "^3.6.0",
     "import-meta-resolve": "^4.2.0",
-    "flatted": "^3.4.0",
+    "flatted": "^3.4.2",
     "mlly": "^1.8.0",
     "ndepe": "^0.1.13",
     "pkg-types": "^1.3.1",