chore: update pnpm to v9.15.0 (#590)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

package.json

@@ -17,7 +17,7 @@
     "url": "git+https://github.com/kufu/textlint-rule-preset-smarthr.git"
   },
   "engines": {
-    "pnpm": "=9.14.4"
+    "pnpm": "=9.15.0"
   },
   "scripts": {
     "example": "cd example && pnpm it",
@@ -82,5 +82,5 @@
   "author": "SmartHR textlint Team",
   "license": "MIT",
   "description": "SmartHRらしい文書を書くための、textlintルールプリセットを提供します。",
-  "packageManager": "pnpm@9.14.4+sha512.c8180b3fbe4e4bca02c94234717896b5529740a6cbadf19fa78254270403ea2f27d4e1d46a08a0f56c89b63dc8ebfd3ee53326da720273794e6200fcf0d184ab"
+  "packageManager": "pnpm@9.15.0+sha512.76e2379760a4328ec4415815bcd6628dee727af3779aaa4c914e3944156c4299921a89f976381ee107d41f12cfa4b66681ca9c718f0668fa0831ed4c6d8ba56c"
 }