Update dependency sinon to v21 (#25794)

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

package.json

@@ -213,7 +213,7 @@
     "prettier": "3.5.3",
     "rspack-manifest-plugin": "5.0.3",
     "serve": "14.2.4",
-    "sinon": "20.0.0",
+    "sinon": "21.0.0",
     "tar": "7.4.3",
     "terser-webpack-plugin": "5.3.14",
     "ts-lit-plugin": "2.0.2",

yarn.lock

@@ -9412,7 +9412,7 @@ __metadata:
     rrule: "npm:2.8.1"
     rspack-manifest-plugin: "npm:5.0.3"
     serve: "npm:14.2.4"
-    sinon: "npm:20.0.0"
+    sinon: "npm:21.0.0"
     sortablejs: "patch:sortablejs@npm%3A1.15.6#~/.yarn/patches/sortablejs-npm-1.15.6-3235a8f83b.patch"
     stacktrace-js: "npm:2.0.2"
     superstruct: "npm:2.0.2"
@@ -13310,16 +13310,16 @@ __metadata:
   languageName: node
   linkType: hard
 
-"sinon@npm:20.0.0":
-  version: 20.0.0
-  resolution: "sinon@npm:20.0.0"
+"sinon@npm:21.0.0":
+  version: 21.0.0
+  resolution: "sinon@npm:21.0.0"
   dependencies:
     "@sinonjs/commons": "npm:^3.0.1"
     "@sinonjs/fake-timers": "npm:^13.0.5"
     "@sinonjs/samsam": "npm:^8.0.1"
     diff: "npm:^7.0.0"
     supports-color: "npm:^7.2.0"
-  checksum: 10/825cb36a58c0510cec03d9bef4fe66a12baf0e0cfdf1600423e3da1e6d57a03fe8161f4859340ea13d4c42e63da1724a260ef4c5ce119dc9ee075ad93b6e8bdd
+  checksum: 10/b460e1cde56fa34ecbebc216522667fa3985444020dc70508177f85d127e6b9a27184c4b3146c575b30ec3091bde508b1373fad306b1e808037a37035e62065d
   languageName: node
   linkType: hard