Bump php-imap/php-imap from 3.0.17 to 3.0.20 (#101)

Bumps [php-imap/php-imap](https://github.com/barbushin/php-imap) from 3.0.17 to 3.0.20.
- [Release notes](https://github.com/barbushin/php-imap/releases)
- [Commits](https://github.com/barbushin/php-imap/compare/3.0.17...3.0.20)

composer.lock

@@ -150,16 +150,16 @@
         },
         {
             "name": "php-imap/php-imap",
-            "version": "3.0.17",
+            "version": "3.0.20",
             "source": {
                 "type": "git",
                 "url": "https://github.com/barbushin/php-imap.git",
-                "reference": "b23e99b3885ba1fb4c7910928b5c1f95dd18df68"
+                "reference": "07ffd1eeb0241d2424386af4fe0601b716048b2b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/barbushin/php-imap/zipball/b23e99b3885ba1fb4c7910928b5c1f95dd18df68",
-                "reference": "b23e99b3885ba1fb4c7910928b5c1f95dd18df68",
+                "url": "https://api.github.com/repos/barbushin/php-imap/zipball/07ffd1eeb0241d2424386af4fe0601b716048b2b",
+                "reference": "07ffd1eeb0241d2424386af4fe0601b716048b2b",
                 "shasum": ""
             },
             "require": {
@@ -196,7 +196,7 @@
                 "pop3",
                 "receive emails"
             ],
-            "time": "2019-05-18T12:05:57+00:00"
+            "time": "2019-05-25T14:26:06+00:00"
         }
     ],
     "packages-dev": [],