Update boto3 and remove explicit botocore dependency

[laymonage]

• https://docs.djangoproject.com/en/stable/internals/deprecation/#deprecation-removed-in-5-1

  bakerydemo/requirements/base.txt

  Line 1 in 5e261b5

  Django>=5.1,<5.2

• Update boto3 to fix cannot import name 'Mapping' from 'collections' (/usr/lib/python3.11/collections/__init__.py) boto/boto3#3766
• Remove explicit botocore dependency, as boto3 already depends on it

[laymonage]

Updated to only bump the boto3 and dropping botocore dependency, as the STORAGES setting update has been done in #527. I already successfully deployed a similar change previously to the nightly demo, so I'll merge this after CI passes