refactor: Use f-string instead of .format()

It's nicer to read and as such also recommended to use over `.format()`

.github/verify_versions.py

@@ -8,11 +8,11 @@ def verify_all_mod_versions():
     manifesto = json.load(f)
 
     for mod in manifesto:
-        print('Verifying "{}":'.format(mod))
+        print(f'Verifying "{mod}":')
 
         # Build GitHub API link and fetch distant tags list
         words = manifesto[mod]['Repository'].split('/')
-        tags_url = "https://api.github.com/repos/{}/{}/tags".format(words[-2], words[-1])
+        tags_url = f"https://api.github.com/repos/{words[-2]}/{words[-1]}/tags"
         response = urlopen(tags_url) 
         tags_data = json.loads(response.read())
 
@@ -23,14 +23,14 @@ def verify_all_mod_versions():
 
             # There should be only one matching version
             if len(matching_distant_versions) != 1:
-                sys.exit('  ❌ v{} (unknown distant version)'.format(version['Version']))
+                sys.exit(f'  ❌ v{version["Version"]} (unknown distant version)')
 
             # Compare manifesto commit hash with repository hash
             distant_version = matching_distant_versions[0]
             if local_hash == distant_version['commit']['sha']:
-                print('  ✔️ v{}'.format(version['Version']))
+                print(f'  ✔️ v{version['Version']}')
             else:
-                sys.exit('  ❌ v{} (hash comparison failed)'.format(version['Version']))
+                sys.exit(f'  ❌ v{version['Version']} (hash comparison failed)')
 
 if __name__ == "__main__":
     verify_all_mod_versions()