Update boto versions and bump version to 4.0.0.dev5

pyproject.toml

 [tool.poetry]
 name = "AlekSIS-Core"
-version = "4.0.0.dev4"
+version = "4.0.0.dev5"
 packages = [
     { include = "aleksis" }
 ]
@@ -109,8 +109,8 @@ django-uwsgi-ng = "^2.0"
 django-extensions = "^3.1.1"
 ipython = "^8.0.0"
 django-oauth-toolkit = "^2.0.0"
-django-storages = {version = "^1.13.2", optional = true}
-boto3 = {version = "^1.26.142", optional = true}
+django-storages = {version = "^1.14.2", optional = true}
+boto3 = {version = "^1.34.52", optional = true}
 django-cleanup = "^8.0.0"
 djangorestframework = "^3.12.4"
 Whoosh = "^2.7.4"