chore(deps): bump defu in the npm_and_yarn group across 1 directory

Bumps the npm_and_yarn group with 1 update in the / directory: [defu](https://github.com/unjs/defu).


Updates `defu` from 6.1.4 to 6.1.5
- [Release notes](https://github.com/unjs/defu/releases)
- [Changelog](https://github.com/unjs/defu/blob/main/CHANGELOG.md)
- [Commits](unjs/defu@v6.1.4...v6.1.5)

---
updated-dependencies:
- dependency-name: defu
  dependency-version: 6.1.5
  dependency-type: direct:production
  dependency-group: npm_and_yarn
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

packages/unplugin-typegpu/package.json

@@ -171,7 +171,7 @@
     "@babel/traverse": "^7.29.0",
     "@babel/types": "catalog:",
     "ast-kit": "^2.2.0",
-    "defu": "^6.1.4",
+    "defu": "^6.1.5",
     "magic-string-ast": "^1.0.3",
     "pathe": "^2.0.3",
     "picomatch": "^4.0.4",