Update searx.data - update_firefox_version.py

searx/data/useragents.json

@@ -1,7 +1,7 @@
 {
     "versions": [
-        "114.0",
-        "113.0"
+        "115.0",
+        "114.0"
     ],
     "os": [
         "Windows NT 10.0; Win64; x64",