Update dependency flask-migrate to v3.1.0

Pipfile

@@ -10,7 +10,7 @@ name = "pypi"
 [packages]
 flask = "==2.0.3"
 python-dotenv = "==0.17.1"
-flask-migrate = "==3.0.1"
+flask-migrate = "==3.1.0"
 flask-sqlalchemy  = "==2.5.1"
 sqlalchemy = "==1.4.53"
 waitress = "==2.1.2"

Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "3e2ddadb687d67eee6974c15de24ee02b77941eae9901b4939249f7e2881110e"
+            "sha256": "6d3d845993189a875534ee97fe2a5eb6e0f606242aa31760974c1138a845bf3a"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -51,11 +51,12 @@
         },
         "flask-migrate": {
             "hashes": [
-                "sha256:4d42e8f861d78cb6e9319afcba5bf76062e5efd7784184dd2a1cccd9de34a702",
-                "sha256:df9043d2050df3c0e0f6313f6b529b62c837b6033c20335e9d0b4acdf2c40e23"
+                "sha256:57d6060839e3a7f150eaab6fe4e726d9e3e7cffe2150fb223d73f92421c6d1d9",
+                "sha256:a6498706241aba6be7a251078de9cf166d74307bca41a4ca3e403c9d39e2f897"
             ],
             "index": "pypi",
-            "version": "==3.0.1"
+            "markers": "python_version >= '3.6'",
+            "version": "==3.1.0"
         },
         "flask-sqlalchemy": {
             "hashes": [