Bump onelogin/php-saml from 3.0.0 to 3.1.0 in /3rdparty

Bumps [onelogin/php-saml](https://github.com/onelogin/php-saml) from 3.0.0 to 3.1.0.
- [Release notes](https://github.com/onelogin/php-saml/releases)
- [Changelog](https://github.com/onelogin/php-saml/blob/v3.1.0/CHANGELOG)
- [Commits](https://github.com/onelogin/php-saml/compare/v3.0.0...v3.1.0)

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

3rdparty/composer.lock

@@ -51,16 +51,16 @@
         },
         {
             "name": "onelogin/php-saml",
-            "version": "v3.0.0",
+            "version": "v3.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/onelogin/php-saml.git",
-                "reference": "920c2240e48c9a74aad4129720f48fbf3d5fee47"
+                "reference": "15016f9d633614c62fe6bb1d4ec86079b3e13a63"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/onelogin/php-saml/zipball/920c2240e48c9a74aad4129720f48fbf3d5fee47",
-                "reference": "920c2240e48c9a74aad4129720f48fbf3d5fee47",
+                "url": "https://api.github.com/repos/onelogin/php-saml/zipball/15016f9d633614c62fe6bb1d4ec86079b3e13a63",
+                "reference": "15016f9d633614c62fe6bb1d4ec86079b3e13a63",
                 "shasum": ""
             },
             "require": {
@@ -97,20 +97,20 @@
                 "onelogin",
                 "saml"
             ],
-            "time": "2018-10-02T16:02:37+00:00"
+            "time": "2019-01-28T13:04:13+00:00"
         },
         {
             "name": "robrichards/xmlseclibs",
-            "version": "3.0.2",
+            "version": "3.0.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/robrichards/xmlseclibs.git",
-                "reference": "1f4de0c0d121922aafd8c62c2a9f5e528830cf38"
+                "reference": "406c68ac9124db033d079284b719958b829cb830"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/robrichards/xmlseclibs/zipball/1f4de0c0d121922aafd8c62c2a9f5e528830cf38",
-                "reference": "1f4de0c0d121922aafd8c62c2a9f5e528830cf38",
+                "url": "https://api.github.com/repos/robrichards/xmlseclibs/zipball/406c68ac9124db033d079284b719958b829cb830",
+                "reference": "406c68ac9124db033d079284b719958b829cb830",
                 "shasum": ""
             },
             "require": {
@@ -135,7 +135,7 @@
                 "xml",
                 "xmldsig"
             ],
-            "time": "2018-09-27T13:24:13+00:00"
+            "time": "2018-11-15T11:59:02+00:00"
         }
     ],
     "packages-dev": [],