Merge pull request #454 from gprMax/dependabot/pip/setuptools-70.0.0

Bump setuptools from 69.2.0 to 70.0.0

requirements.txt

@@ -96,7 +96,7 @@ rfc3986-validator==0.1.1
 rpds-py==0.18.0
 scipy==1.12.0
 Send2Trash==1.8.2
-setuptools==69.2.0
+setuptools==70.0.0
 sip==6.8.3
 six==1.16.0
 sniffio==1.3.1