modify flask version

Author: allen-k1m

opentelemetry-instrumentation/src/opentelemetry/instrumentation/bootstrap_gen.py

@@ -85,7 +85,7 @@
         "instrumentation": "opentelemetry-instrumentation-fastapi==0.43b0.dev",
     },
     "flask": {
-        "library": "flask >= 1.0, < 3.0",
+        "library": "flask >= 1.0",
         "instrumentation": "opentelemetry-instrumentation-flask==0.43b0.dev",
     },
     "grpcio": {