Revert "chore(deps): update dependency eslint to v10"

This reverts commit ab182a6.

Author: ffurrer2

package.json

@@ -45,7 +45,7 @@
     "@jest/globals": "30.3.0",
     "@rollup/plugin-commonjs": "29.0.2",
     "@rollup/plugin-node-resolve": "16.0.3",
-    "eslint": "10.2.0",
+    "eslint": "9.39.4",
     "eslint-config-prettier": "10.1.8",
     "eslint-plugin-import": "2.32.0",
     "eslint-plugin-jest": "29.15.2",