bitbake: toaster-requirements.txt: Django 3.2 LTS

Django 2.2.x goes EOL April 2022.

Switch the to current LTS Django 3.2.x supported until April 2024.

(Bitbake rev: 23a15c5703d5ef4190921f9bb0273e43b1de489c)

Signed-off-by: Tim Orling <tim.orling@konsulko.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/toaster-requirements.txt

@@ -1,3 +1,3 @@
-Django>2.2,<2.3
+Django>3.2,<3.3
 beautifulsoup4>=4.4.0
 pytz