Upgrade dependencies to latest versions

This is because, at least in Python 12, the older dependencies
were starting to break (mainly to do with the way `requests`
was using the `collections` library, but this may be a good
time to update everything else as well).

setup.py

@@ -15,11 +15,12 @@ setup(
     include_package_data=True,
 
     install_requires=[
-        'click==6.2',
-        'requests==2.9.1',
-        'progress==1.2',
-        'future==0.15.2',
-        'six==1.10.0',
+        'click==8.1.7',
+        'requests==2.32.3',
+        'progress==1.6',
+        'future==1.0.0',
+        'six==1.16.0',
+        'urllib3==2.2.3',
         'pocket-api'
     ],
     entry_points={