chore : updated numpy version

pyproject.toml

 [project]
 name = "aidge_core"
 description="Core implementations of the operators and graph of aidge framework"
-dependencies = ["numpy==1.26.4"]
+dependencies = ["numpy>=1.26.4"]
 requires-python = ">= 3.7"
 readme = "README.md"
 license = { file = "LICENSE" }