chore: Bump sinon from 20.0.0 to 21.0.0 (#89)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Durran Jordan <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -61,7 +61,7 @@
     "prebuild": "^13.0.1",
     "prettier": "^3.6.2",
     "semver": "^7.7.2",
-    "sinon": "^20.0.0",
+    "sinon": "^21.0.0",
     "sinon-chai": "^3.7.0",
     "source-map-support": "^0.5.21",
     "standard-version": "^9.5.0",