Merge pull request #484 from gprMax/dependabot/pip/setuptools-78.1.1

Bump setuptools from 68.2.2 to 78.1.1

requirements.txt

@@ -98,7 +98,7 @@ rfc3986-validator==0.1.1
 rpds-py==0.10.6
 scipy==1.15.1
 Send2Trash==1.8.2
-setuptools==68.2.2
+setuptools==78.1.1
 sip==6.7.12
 six==1.16.0
 sniffio==1.3.0