fix: bump django-sendgrid-v5 from 1.1.1 to 1.2.4 (#25)

Bump django-sendgrid-v5 from version 1.1.1 to 1.2.4, introducing several enhancements including EU region endpoint support, reply_to_list feature, and improved compatibility with newer Django versions. Update test configurations to include Django 5.

Bug Fixes:

Fix issue #114 in django-sendgrid-v5.
Enhancements:

Add support for EU region endpoint in django-sendgrid-v5.
Add reply_to_list feature in django-sendgrid-v5.
Add attachment content-type method handling and configurable tracking per-email in django-sendgrid-v5.
Add compatibility for Django 3.2+ and 4.0 in django-sendgrid-v5.
Tests:

Update test configuration and add Django 5 to the test matrix.

dropship_project/requirements.txt

@@ -6,5 +6,5 @@ django-axes==7.0.1
 django-recaptcha==2.0.6
 django-otp==1.0.2
 django-two-factor-auth==1.17.0
-django-sendgrid-v5==1.1.1
+django-sendgrid-v5==1.2.4
 django-crispy-forms==1.14.0