Bump league/flysystem from 2.0.4 to 2.1.1 (#2029)

Bumps [league/flysystem](https://github.com/thephpleague/flysystem) from 2.0.4 to 2.1.1.
- [Release notes](https://github.com/thephpleague/flysystem/releases)
- [Changelog](https://github.com/thephpleague/flysystem/blob/2.x/CHANGELOG.md)
- [Commits](https://github.com/thephpleague/flysystem/compare/2.0.4...2.1.1)

---
updated-dependencies:
- dependency-name: league/flysystem
  dependency-type: indirect
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

composer.lock

@@ -1539,16 +1539,16 @@
         },
         {
             "name": "league/flysystem",
-            "version": "2.0.4",
+            "version": "2.1.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/thephpleague/flysystem.git",
-                "reference": "7cbbb7222e8d8a34e71273d243dfcf383ed6779f"
+                "reference": "a3c694de9f7e844b76f9d1b61296ebf6e8d89d74"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/thephpleague/flysystem/zipball/7cbbb7222e8d8a34e71273d243dfcf383ed6779f",
-                "reference": "7cbbb7222e8d8a34e71273d243dfcf383ed6779f",
+                "url": "https://api.github.com/repos/thephpleague/flysystem/zipball/a3c694de9f7e844b76f9d1b61296ebf6e8d89d74",
+                "reference": "a3c694de9f7e844b76f9d1b61296ebf6e8d89d74",
                 "shasum": ""
             },
             "require": {
@@ -1569,7 +1569,8 @@
                 "google/cloud-storage": "^1.23",
                 "phpseclib/phpseclib": "^2.0",
                 "phpstan/phpstan": "^0.12.26",
-                "phpunit/phpunit": "^8.5 || ^9.4"
+                "phpunit/phpunit": "^8.5 || ^9.4",
+                "sabre/dav": "^4.1"
             },
             "type": "library",
             "autoload": {
@@ -1603,7 +1604,7 @@
             ],
             "support": {
                 "issues": "https://github.com/thephpleague/flysystem/issues",
-                "source": "https://github.com/thephpleague/flysystem/tree/2.0.4"
+                "source": "https://github.com/thephpleague/flysystem/tree/2.1.1"
             },
             "funding": [
                 {
@@ -1619,7 +1620,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-02-12T19:37:50+00:00"
+            "time": "2021-06-23T22:07:10+00:00"
         },
         {
             "name": "league/flysystem-async-aws-s3",
@@ -7507,5 +7508,5 @@
         "ext-exif": "*"
     },
     "platform-dev": [],
-    "plugin-api-version": "2.0.0"
+    "plugin-api-version": "2.1.0"
 }