Update dependency @types/sinon to v21 (#691)

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

Author: renovate[bot]

packages/referrer-parser/package.json

@@ -50,7 +50,7 @@
   "devDependencies": {
     "@types/node": "^24.0.0",
     "@types/should": "^13.0.0",
-    "@types/sinon": "^20.0.0",
+    "@types/sinon": "^21.0.0",
     "@typescript-eslint/eslint-plugin": "^8.0.0",
     "@typescript-eslint/parser": "^8.0.0",
     "@vitest/coverage-v8": "^4.0.0",

yarn.lock

@@ -3495,10 +3495,10 @@
   dependencies:
     should "*"
 
-"@types/sinon@^20.0.0":
-  version "20.0.0"
-  resolved "https://registry.yarnpkg.com/@types/sinon/-/sinon-20.0.0.tgz#dee3894bf87121424105aad68e701b46fbfc0cbd"
-  integrity sha512-etYGUC6IEevDGSWvR9WrECRA01ucR2/Oi9XMBUAdV0g4bLkNf4HlZWGiGlDOq5lgwXRwcV+PSeKgFcW4QzzYOg==
+"@types/sinon@^21.0.0":
+  version "21.0.0"
+  resolved "https://registry.yarnpkg.com/@types/sinon/-/sinon-21.0.0.tgz#3a598a29b3aec0512a21e57ae0fd4c09aa013ca9"
+  integrity sha512-+oHKZ0lTI+WVLxx1IbJDNmReQaIsQJjN2e7UUrJHEeByG7bFeKJYsv1E75JxTQ9QKJDp21bAa/0W2Xo4srsDnw==
   dependencies:
     "@types/sinonjs__fake-timers" "*"