Set wrk benchmark thresholds to similar numbers found in node

Author: bitterpanda63

benchmarks/wrk_benchmark/flask_mysql.py

@@ -6,5 +6,5 @@
     "http://localhost:8086/create",
     "http://localhost:8087/create",
     "",
-    percentage_limit=15
+    percentage_limit=40
 )

benchmarks/wrk_benchmark/flask_mysql_uwsgi.py

@@ -6,5 +6,5 @@
     "http://localhost:8088/benchmark",
     "http://localhost:8089/benchmark",
     "a non empty route which makes a simulated request to a database",
-    percentage_limit=15
+    percentage_limit=40
 )

benchmarks/wrk_benchmark/starlette_postgres_uvicorn.py

@@ -6,10 +6,10 @@
     "http://localhost:8102/delayed_route",
     "http://localhost:8103/delayed_route",
     "a non empty route which makes a simulated request to a database",
-    percentage_limit=15
+    percentage_limit=30
 )
 
 run_benchmark(
     "http://localhost:8102/just", "http://localhost:8103/just", "an empty route",
-    percentage_limit=30
+    percentage_limit=40
 )