Improves detection for generic bots

ref #7702

Tests/fixtures/smartphone-39.yml

@@ -4155,3 +4155,21 @@
     model: G3 Max
   os_family: Android
   browser_family: Chrome
+-
+  user_agent: UCWEB/2.0 (Java; U; MIDP-2.0; Nokia203/20.37) U2/1.0.0 UCMini/10.9.8.1006 (SpeedMode; Proxy; Android 4.4.4; AS-5433_Secret ) U2/1.0.0 Mobile
+  os:
+    name: Android
+    version: 4.4.4
+    platform: ""
+  client:
+    type: browser
+    name: UC Browser Mini
+    version: 10.9.8.1006
+    engine: ""
+    engine_version: ""
+  device:
+    type: smartphone
+    brand: Nokia
+    model: Asha 203
+  os_family: Android
+  browser_family: Unknown

regexes/bots.yml

@@ -4517,5 +4517,5 @@
   name: 'Generic Bot'
 
 # Generic detections
-- regex: '[a-z0-9_-]*(?:(?<!cu|power[ _]|m[ _])bot(?![ _]TAB|[ _]?5[0-9]|[ _]Senior|[ _]Junior)|analyzer|appengine|archiver?|checker|collector|crawl|crawler|(?<!node-|uclient-|Mikrotik/\d\.[x\d] |electron-)fetch(?:er)?|indexer|inspector|monitor|(?<!Microsoft |banshee-)project(?!or)|(?<!Google Wap |Blue )proxy|research|resolver|robots|(?<!Cam)scanner|scraper|script|searcher|(?<!-)security|spider(?! 8)|study|transcoder|uptime|user[ _]?agent|validator)(?:[^a-z]|$)'
+- regex: '[a-z0-9_-]*(?:(?<!cu|power[ _]|m[ _])bot(?![ _]TAB|[ _]?5[0-9]|[ _]Senior|[ _]Junior)|analyzer|appengine|archiver?|checker|collector|crawl|crawler|(?<!node-|uclient-|Mikrotik/\d\.[x\d] |electron-)fetch(?:er)?|indexer|inspector|monitor|(?<!Microsoft |banshee-)project(?!or)|(?<!Google Wap |Blue |SpeedMode; )proxy|research|resolver|robots|(?<!Cam)scanner|scraper|script|searcher|(?<!-)security|spider(?! 8)|study|transcoder|uptime|user[ _]?agent|validator)(?:[^a-z]|$)'
   name: 'Generic Bot'