chore: Update subproject commits to the 3.2.0 releases

[hugobessa]

What changed

Points the 11 released submodules at their v3.2.0 release commits, the same follow-up 3.1.1 had:

Submodule	Commit
vintasend-aws-s3-attachments	c556a53
vintasend-celery	e74eb77
vintasend-django	86fec25
vintasend-django-templates-manager	b26f0cf
vintasend-fastapi-mail	4f19bec
vintasend-flask-mail	d98b9bb
vintasend-jinja	bd5fe68
vintasend-managed-templates	99eb64b
vintasend-sqlalchemy	b2156fb
tools/vintasend-api	85e9ef7
tools/vintasend-templates-management-api	9a371ea

The two TS dashboard-core submodules aren't part of the Python release and are left as they were.

Downstream impact / breaking

None. Gitlinks only.

🤖 Generated with Claude Code

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.04%. Comparing base (f689287) to head (0a1c4f7).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #29   +/-   ##
=======================================
  Coverage   86.04%   86.04%           
=======================================
  Files          37       37           
  Lines        3117     3117           
  Branches      438      438           
=======================================
  Hits         2682     2682           
  Misses        307      307           
  Partials      128      128           

Flag	Coverage Δ
python-3.10	85.98% <ø> (ø)
python-3.11	85.98% <ø> (ø)
python-3.12	85.98% <ø> (ø)
python-3.13	85.98% <ø> (ø)
python-3.14	85.68% <ø> (ø)

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