DCF-1384: Update flask (#374)

* update flask

* update ver

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "indexd"
-version = "5.0.3"
+version = "5.0.4"
 description = "Gen3 Indexing Service"
 authors = ["CTDS UChicago <cdis@uchicago.edu>"]
 license = "Apache-2.0"
@@ -21,7 +21,7 @@ gen3authz = "^1.0.4"
 hsclient = {git = "https://github.com/uc-cdis/hsclient", rev = "1.0.0"}
 indexclient = "^2.1.0"
 jsonschema = "^3.2"
-flask = "^2.2.5"
+flask = "^2.3.3"
 psycopg2 = "^2.7"
 sqlalchemy = "~1.3.3"
 sqlalchemy-utils = "^0.37.3"