Update networkx requirement from <=3.1.0 to <=3.4.2 in /tools

Updates the requirements on [networkx](https://github.com/networkx/networkx) to permit the latest version.
- [Release notes](https://github.com/networkx/networkx/releases)
- [Commits](networkx/networkx@networkx-0.23...networkx-3.4.2)

---
updated-dependencies:
- dependency-name: networkx
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

tools/constraints.txt

@@ -4,7 +4,7 @@
 # tensorflow, numpy
 h5py>=3.1.0,<3.11.0
 onnx>=1.8.1,<=1.17.0
-networkx<=3.1.0
+networkx<=3.4.2
 pytest>=5.0,<8.4
 protobuf>=3.18.1,<4.0.0
 defusedxml>=0.7.1