🚑(deps) update arrow usage for version 1.0

Arrow version 1.0 introduces some breaking changes
arrow-py/arrow#832
timestamp property has been replaced by int_timestamp

Author: kernicPanel

CHANGELOG.md

@@ -22,6 +22,7 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 - Fix autosuggest to redirect user directly on the course page when a course
   entry has been selected from the suggestion dropdown
 - Pin `django-treebeard` to `4.4` as the 4.5 release introduces BC
+- Code update to support arrow 1.0
 
 ## [2.1.0] - 2021-01-22
 

src/richie/apps/search/forms.py

@@ -128,7 +128,7 @@ def get_script_fields(self):
                     "id": "state",
                     "params": {
                         "languages": self.cleaned_data.get("languages") or None,
-                        "ms_since_epoch": arrow.utcnow().timestamp * 1000,
+                        "ms_since_epoch": arrow.utcnow().int_timestamp * 1000,
                         "states": self.states,
                         "use_case": "field",
                     },
@@ -167,8 +167,8 @@ def get_sorting_script(self):
                     "id": "state",
                     "params": {
                         "languages": self.cleaned_data.get("languages") or None,
-                        "max_date": arrow.get(MAXYEAR, 12, 31).timestamp * 1000,
-                        "ms_since_epoch": arrow.utcnow().timestamp * 1000,
+                        "max_date": arrow.get(MAXYEAR, 12, 31).int_timestamp * 1000,
+                        "ms_since_epoch": arrow.utcnow().int_timestamp * 1000,
                         "states": self.states,
                         "use_case": "sorting",
                     },