Fix a formatting error in the password rules for hetzner.com

Replace the comma with a semicolon between two `required` fields.

Author: erynofwales

quirks/password-rules.json

@@ -576,7 +576,7 @@
         "password-rules": "minlength: 8; maxlength: 30; max-consecutive: 3; required: lower; required: upper; required: digit; required: [#$%^&!@];"
     },
     "hetzner.com": {
-        "password-rules": "minlength: 8; required: lower; required: upper; required: digit, required: [-^!$%/()=?+#.,;:~*@{}_&[]];"
+        "password-rules": "minlength: 8; required: lower; required: upper; required: digit; required: [-^!$%/()=?+#.,;:~*@{}_&[]];"
     },
     "hilton.com": {
         "password-rules": "minlength: 8; maxlength: 32; required: lower; required: upper; required: digit;"