Fix matplotlib version compatibility for Python 3.9

- Lower matplotlib requirement from >=3.10.0 to >=3.5.0 for Python 3.9 compatibility
- Lower pandas requirement from >=2.3.0 to >=1.3.0 for broader compatibility
- Lower numpy requirement from >=2.3.0 to >=1.21.0 for broader compatibility
- Ensures CI builds pass on all supported Python versions (3.8, 3.9, 3.10, 3.11)

Co-Authored-By: andrei@lighter.xyz <aonut17@gmail.com>

Author: devin-ai-integration[bot]

requirements.txt

@@ -8,6 +8,6 @@ aiohttp-retry >= 2.8.3
 websockets >= 12.0.0
 eth-account >= 0.13.4
 requests >= 2.31.0
-matplotlib >= 3.10.0
-pandas >= 2.3.0
-numpy >= 2.3.0
+matplotlib >= 3.5.0
+pandas >= 1.3.0
+numpy >= 1.21.0