Update boto3 requirement from ~=1.12.49 to ~=1.14.10 (#449)

dependabot-preview[bot] · web-flow · commit 4cb1a76006e1 · 2020-06-25T21:28:23.000+02:00
diff --git a/requirements/requirements.txt b/requirements/requirements.txt
@@ -1,4 +1,4 @@
-boto3~=1.12.49
+boto3~=1.14.10
 marshmallow==3.6.1
 PyYAML>=5.1,<5.4
 requests==2.24.0
