upgrade sql-alchemy version to at least 1.4.29

[ihvol-freenome]

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Is your feature request related to a problem? Please describe.
yes. current requirement for sql-alchemy is >=1.2.0,<=1.4.27 and sql-alchemy version 1.4.27 has this issue. we can't upgrade sql-alchemy because of this dependency.
Describe the solution you'd like
Please upgrade the sql-alchemy to at least 1.4.29 version which has a fix for the issue described above.
Describe alternatives you've considered
alternative workaround would be # type: ignore to ignore the entire file, but that doesn't comply with our code quality policy and we can't use it.
Additional context
Here is the full trace...

version: 0.961
Traceback (most recent call last):
  File "mypy/semanal.py", line 5350, in accept
  File "mypy/nodes.py", line 1165, in accept
  File "mypy/semanal.py", line 2109, in visit_assignment_stmt
  File "mypy/semanal.py", line 2395, in apply_dynamic_class_hook
  File "/fn/lib/python3.9/site-packages/sqlalchemy/ext/mypy/plugin.py", line 145, in _dynamic_class_hook
    obj = ctx.api.named_type("__builtins__.object")
  File "mypy/semanal.py", line 4720, in named_type
  File "mypy/semanal.py", line 4687, in lookup_fully_qualified
AssertionError: __builtins__.object

[meredithslota]

This is temporarily blocked by some failing tests, please see here for additional info: #385 I'm going to close this issue as a duplicate of that issue, and I hope we can prioritize this soon.