Merge pull request #9220 from scratchfoundation/renovate/scratch-paint-2.x

fix(deps): update dependency scratch-paint to v2.1.15

Author: renovate[bot]

package-lock.json

@@ -87,7 +87,7 @@
     "scratch-audio": "0.1.0-prerelease.20221123180128",
     "scratch-blocks": "0.2.0-prerelease.20230919070150",
     "scratch-l10n": "3.16.20230920032206",
-    "scratch-paint": "2.1.14",
+    "scratch-paint": "2.1.15",
     "scratch-render": "0.1.0-prerelease.20230913153807",
     "scratch-render-fonts": "1.0.0-prerelease.20221102164332",
     "scratch-storage": "2.2.1",