Bump sqlalchemy from 1.2.18 to 1.3.3

Bumps [sqlalchemy](https://github.com/sqlalchemy/sqlalchemy) from 1.2.18 to 1.3.3.
- [Release notes](https://github.com/sqlalchemy/sqlalchemy/releases)
- [Changelog](https://github.com/sqlalchemy/sqlalchemy/blob/master/CHANGES)
- [Commits](https://github.com/sqlalchemy/sqlalchemy/commits)

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

Pipfile.lock

@@ -442,10 +442,10 @@
         },
         "sqlalchemy": {
             "hashes": [
-                "sha256:8027fa183f5be466030617a497b2d64e0e16c8d615e5a34bdf9fab6f66bf4723"
+                "sha256:91c54ca8345008fceaec987e10924bf07dcab36c442925357e5a467b36a38319"
             ],
             "index": "pypi",
-            "version": "==1.2.18"
+            "version": "==1.3.3"
         },
         "twitter": {
             "hashes": [

requirements.txt

@@ -40,7 +40,7 @@ raven==6.10.0
 redis==3.2.1
 requests==2.21.0
 six==1.12.0
-sqlalchemy==1.2.18
+sqlalchemy==1.3.3
 twitter==1.18.0
 urllib3==1.24.2
 vine==1.3.0