Bump phpseclib/phpseclib from 2.0.4 to 2.0.31

Bumps [phpseclib/phpseclib](https://github.com/phpseclib/phpseclib) from 2.0.4 to 2.0.31.
- [Release notes](https://github.com/phpseclib/phpseclib/releases)
- [Changelog](https://github.com/phpseclib/phpseclib/blob/master/CHANGELOG.md)
- [Commits](https://github.com/phpseclib/phpseclib/compare/2.0.4...2.0.31)

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

composer.lock

@@ -1,7 +1,7 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
     "content-hash": "484095eb3b32741b56b7e684cbebc680",
@@ -51,7 +51,7 @@
                 "oo",
                 "php"
             ],
-            "time": "2016-01-03 23:14:18"
+            "time": "2016-01-03T23:14:18+00:00"
         },
         {
             "name": "aws/aws-sdk-php",
@@ -169,7 +169,7 @@
                 "notification",
                 "push"
             ],
-            "time": "2016-09-27 10:25:59"
+            "time": "2016-09-27T10:25:59+00:00"
         },
         {
             "name": "guzzle/guzzle",
@@ -855,20 +855,20 @@
                 "encryption",
                 "mcrypt"
             ],
-            "time": "2017-01-15 14:48:33"
+            "time": "2017-01-15T14:48:33+00:00"
         },
         {
             "name": "phpseclib/phpseclib",
-            "version": "2.0.4",
+            "version": "2.0.31",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpseclib/phpseclib.git",
-                "reference": "ab8028c93c03cc8d9c824efa75dc94f1db2369bf"
+                "reference": "233a920cb38636a43b18d428f9a8db1f0a1a08f4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpseclib/phpseclib/zipball/ab8028c93c03cc8d9c824efa75dc94f1db2369bf",
-                "reference": "ab8028c93c03cc8d9c824efa75dc94f1db2369bf",
+                "url": "https://api.github.com/repos/phpseclib/phpseclib/zipball/233a920cb38636a43b18d428f9a8db1f0a1a08f4",
+                "reference": "233a920cb38636a43b18d428f9a8db1f0a1a08f4",
                 "shasum": ""
             },
             "require": {
@@ -876,8 +876,7 @@
             },
             "require-dev": {
                 "phing/phing": "~2.7",
-                "phpunit/phpunit": "~4.0",
-                "sami/sami": "~2.0",
+                "phpunit/phpunit": "^4.8.35|^5.7|^6.0|^9.4",
                 "squizlabs/php_codesniffer": "~2.0"
             },
             "suggest": {
@@ -947,7 +946,25 @@
                 "x.509",
                 "x509"
             ],
-            "time": "2016-10-04T00:57:04+00:00"
+            "support": {
+                "issues": "https://github.com/phpseclib/phpseclib/issues",
+                "source": "https://github.com/phpseclib/phpseclib/tree/2.0.31"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/terrafrost",
+                    "type": "github"
+                },
+                {
+                    "url": "https://www.patreon.com/phpseclib",
+                    "type": "patreon"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/phpseclib/phpseclib",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-04-06T13:56:45+00:00"
         },
         {
             "name": "predis/predis",
@@ -2069,7 +2086,7 @@
                 "github",
                 "test"
             ],
-            "time": "2017-03-31 10:12:47"
+            "time": "2017-03-31T10:12:47+00:00"
         },
         {
             "name": "sebastian/code-unit-reverse-lookup",
@@ -3038,5 +3055,6 @@
         "ext-mcrypt": "*",
         "ext-blackfire": "*"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.0.0"
 }