Odo 0.5.1 is incompatible with sqlalchemy 1.4 on Arch Linux

### Description

Hi, over Arch Linux we install both [`python-odo-0.5.1-1`](https://aur.archlinux.org/packages/python-odo) and [`python-sqlalchemy-1.4.25-1`](https://archlinux.org/packages/community/x86_64/python-sqlalchemy), but if

### Steps to reproduce

Install `odo` from AUR and sqlalchemy from official repositories as follows
```
$ yay -Syyu python-odo
$ sudo pacman -S python-sqlalchemy
sudo pacman -S python-sqlalchemy
resolving dependencies...
looking for conflicting packages...

Packages (2) python-greenlet-1.1.2-1 python-sqlalchemy-1.4.25-1

Total Download Size: 1.95 MiB
Total Installed Size: 11.15 MiB

:: Proceed with installation? [Y/n]
:: Retrieving packages...
python-greenlet-1.1.2-1-x86_64 85.5 KiB 111 KiB/s 00:01 [-----------------------------------------------------------------] 100%
python-sqlalchemy-1.4.25-1-x86_64 1912.3 KiB 1285 KiB/s 00:01 [-----------------------------------------------------------------] 100%
Total (2/2)
```
wait to finish installation and run:

```
[aur@297cae3df7e3 ~]$ python
Python 3.9.7 (default, Oct 10 2021, 15:13:22)
[GCC 11.1.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import odo
Traceback (most recent call last):
File "", line 1, in
File "/usr/lib/python3.9/site-packages/odo/__init__.py", line 39, in
from .backends import sql
File "/usr/lib/python3.9/site-packages/odo/backends/sql.py", line 318, in
@discover.register(sa.engine.RowProxy)
AttributeError: module 'sqlalchemy.engine' has no attribute 'RowProxy'
>>>
```

### Properties

```
Name : python-odo
Version : 0.5.1-1
Description : Data Migration for the Blaze Project
Architecture : any
URL : https://github.com/blaze/odo
Licenses : BSD
Groups : None
Provides : None
Depends On : python-datashape python-pandas python-dask python-networkx
Optional Deps : None
Required By : None
Optional For : None
Conflicts With : None
Replaces : None
Installed Size : 404.83 KiB
Packager : Unknown Packager
Build Date : Fri 26 Nov 2021 11:13:23 PM -05
Install Date : Fri 26 Nov 2021 11:13:29 PM -05
Install Reason : Explicitly installed
Install Script : No
Validated By : None
```

```
Name : python-sqlalchemy
Version : 1.4.25-1
Description : Python SQL toolkit and Object Relational Mapper
Architecture : x86_64
URL : https://www.sqlalchemy.org/
Licenses : MIT
Groups : None
Provides : None
Depends On : python python-greenlet
Optional Deps : python-psycopg2: connect to PostgreSQL database
Required By : None
Optional For : python-dask python-pandas
Conflicts With : None
Replaces : None
Installed Size : 10.76 MiB
Packager : Jelle van der Waa
Build Date : Sun 03 Oct 2021 09:33:09 AM -05
Install Date : Fri 26 Nov 2021 11:23:14 PM -05
Install Reason : Explicitly installed
Install Script : No
Validated By : Signature
```

Reproduce the import failure on Arch Linux with Python 3.9.7, odo 0.5.1, and SQLAlchemy 1.4.25. Start at odo/backends/sql.py around line 318, where the traceback references sqlalchemy.engine.RowProxy; done means importing odo succeeds in that environment and the relevant regression is covered by an available test or reproduction.

Written by the indexing model from the issue text.