Bump networkx from 2.8.7 to 2.8.8

Bumps [networkx](https://github.com/networkx/networkx) from 2.8.7 to 2.8.8.
- [Release notes](https://github.com/networkx/networkx/releases)
- [Commits](networkx/networkx@networkx-2.8.7...networkx-2.8.8)

---
updated-dependencies:
- dependency-name: networkx
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -1,6 +1,6 @@
 Django==3.1.14
 python-dateutil==2.8.2
-networkx==2.8.7
+networkx==2.8.8
 matminer==0.7.8
 boto3==1.24.70
 docopt==0.6.2

setup.py

@@ -33,7 +33,7 @@
     long_description=LONG_DESCRIPTION,
     long_description_content_type='text/markdown',
     install_requires=["python-dateutil==2.8.2",
-                      "networkx==2.8.7",
+                      "networkx==2.8.8",
                       "matplotlib==3.6.2",
                       "matminer==0.7.8",
                       "awscli",