Bump aws/aws-sdk-php from 3.112.15 to 3.112.28

Bumps [aws/aws-sdk-php](https://github.com/aws/aws-sdk-php) from 3.112.15 to 3.112.28.
- [Release notes](https://github.com/aws/aws-sdk-php/releases)
- [Changelog](https://github.com/aws/aws-sdk-php/blob/master/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-php/compare/3.112.15...3.112.28)

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

composer.lock

@@ -358,16 +358,16 @@
         },
         {
             "name": "aws/aws-sdk-php",
-            "version": "3.112.15",
+            "version": "3.112.28",
             "source": {
                 "type": "git",
                 "url": "https://github.com/aws/aws-sdk-php.git",
-                "reference": "ccbfadde0ea60c5396e0408711a927200cb1898c"
+                "reference": "dabae6df3fd53b470da8806d641d05dbb66859da"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/aws/aws-sdk-php/zipball/ccbfadde0ea60c5396e0408711a927200cb1898c",
-                "reference": "ccbfadde0ea60c5396e0408711a927200cb1898c",
+                "url": "https://api.github.com/repos/aws/aws-sdk-php/zipball/dabae6df3fd53b470da8806d641d05dbb66859da",
+                "reference": "dabae6df3fd53b470da8806d641d05dbb66859da",
                 "shasum": ""
             },
             "require": {
@@ -437,7 +437,7 @@
                 "s3",
                 "sdk"
             ],
-            "time": "2019-10-04T18:08:52+00:00"
+            "time": "2019-10-24T18:14:24+00:00"
         },
         {
             "name": "barryvdh/laravel-cors",