Bump robrichards/xmlseclibs from 3.0.4 to 3.1.1 in /3rdparty

Bumps [robrichards/xmlseclibs](https://github.com/robrichards/xmlseclibs) from 3.0.4 to 3.1.1.
- [Release notes](https://github.com/robrichards/xmlseclibs/releases)
- [Changelog](https://github.com/robrichards/xmlseclibs/blob/master/CHANGELOG.txt)
- [Commits](https://github.com/robrichards/xmlseclibs/compare/3.0.4...3.1.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

3rdparty/composer.lock

@@ -101,16 +101,16 @@
         },
         {
             "name": "robrichards/xmlseclibs",
-            "version": "3.0.4",
+            "version": "3.1.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/robrichards/xmlseclibs.git",
-                "reference": "0a53d3c3aa87564910cae4ed01416441d3ae0db5"
+                "reference": "f8f19e58f26cdb42c54b214ff8a820760292f8df"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/robrichards/xmlseclibs/zipball/0a53d3c3aa87564910cae4ed01416441d3ae0db5",
+                "url": "https://api.github.com/repos/robrichards/xmlseclibs/zipball/f8f19e58f26cdb42c54b214ff8a820760292f8df",
-                "reference": "0a53d3c3aa87564910cae4ed01416441d3ae0db5",
+                "reference": "f8f19e58f26cdb42c54b214ff8a820760292f8df",
                 "shasum": ""
             },
             "require": {
@@ -135,7 +135,7 @@
                 "xml",
                 "xmldsig"
             ],
-            "time": "2019-11-05T11:44:22+00:00"
+            "time": "2020-09-05T13:00:25+00:00"
         }
     ],
     "packages-dev": [],
@@ -145,5 +145,6 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": [],
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "1.1.0"
 }