Bump pnpm from 10.19.0 to 10.20.0 in the npm group across 1 directory

Bumps the npm group with 1 update in the / directory: [pnpm](https://github.com/pnpm/pnpm/tree/HEAD/pnpm).


Updates `pnpm` from 10.19.0 to 10.20.0
- [Release notes](https://github.com/pnpm/pnpm/releases)
- [Changelog](https://github.com/pnpm/pnpm/blob/main/pnpm/CHANGELOG.md)
- [Commits](https://github.com/pnpm/pnpm/commits/v10.20.0/pnpm)

---
updated-dependencies:
- dependency-name: pnpm
  dependency-version: 10.20.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: npm
...

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

Author: dependabot[bot]

package.json

@@ -37,7 +37,7 @@
     "eslint-plugin-github": "^6.0.0",
     "jiti": "^2.6.1",
     "js-yaml": "^4.1.0",
-    "pnpm": "^10.19.0",
+    "pnpm": "^10.20.0",
     "rimraf": "^6.0.1",
     "ts-jest": "^29.4.5",
     "typescript": "^5.9.3",