[PR #5608/fd6c3977 backport][3.55] Bump Dynaconf UB to <3.3.0

[patchback]

This is a backport of PR #5608 as merged into main (fd6c397).

Reason: 3.2.6 comes with important performance fix.

[noissue]

The problem was only observed if the application enabled Access Hooks (enabled on galaxy_ng to alter hostname settings upon access)

Before

$ time curl -s http://localhost:5001/api/galaxy/v3/openapi.json 2>&1 > /dev/null

real    0m41.374s
user    0m0.012s
sys     0m0.008s

After

$ time curl -s http://localhost:5001/api/galaxy/v3/openapi.json 2>&1 > /dev/null

real	0m2.969s
user	0m0.003s
sys	0m0.006s