chore(deps): update dependency urllib3 to v1.26.19 [security]

Author: plural-renovate[bot]

ai/requirements.txt

@@ -47,7 +47,7 @@ tqdm==4.65.0
 typing-inspect==0.8.0
 typing_extensions==4.5.0
 tzdata==2023.3
-urllib3==1.26.18
+urllib3==1.26.19
 uvicorn==0.22.0
 uvloop==0.17.0
 watchfiles==0.19.0