Update dependency waitress to v3

Pipfile

@@ -13,7 +13,7 @@ python-dotenv = "==1.0.1"
 flask-migrate = "==4.0.7"
 flask-sqlalchemy  = "==2.5.1"
 sqlalchemy = "==1.4.54"
-waitress = "==2.1.2"
+waitress = "==3.0.0"
 pyyaml = "==6.0.2"
 flask-cors = "==5.0.0"
 ldap3 = "==2.9.1"

Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "c99f25fb2e022052be3e6fecf72c39fe3d6e4817b7f0608a094a3262fd1cc34b"
+            "sha256": "2364bb76a259975b6ccea7725b10c1be3af59a74eb9109a7f6163a8bc2df0487"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -411,12 +411,12 @@
         },
         "waitress": {
             "hashes": [
-                "sha256:7500c9625927c8ec60f54377d590f67b30c8e70ef4b8894214ac6e4cad233d2a",
-                "sha256:780a4082c5fbc0fde6a2fcfe5e26e6efc1e8f425730863c04085769781f51eba"
+                "sha256:005da479b04134cdd9dd602d1ee7c49d79de0537610d653674cc6cbde222b8a1",
+                "sha256:2a06f242f4ba0cc563444ca3d1998959447477363a2d7e9b8b4d75d35cfd1669"
             ],
             "index": "pypi",
-            "markers": "python_full_version >= '3.7.0'",
-            "version": "==2.1.2"
+            "markers": "python_full_version >= '3.8.0'",
+            "version": "==3.0.0"
         },
         "werkzeug": {
             "hashes": [