Update dependency pymongo to v4.4.0 (#25)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [pymongo](https://github.com/mongodb/mongo-python-driver) | minor | `==4.3.3` -> `==4.4.0` |

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### Release Notes

<details>
<summary>mongodb/mongo-python-driver</summary>

### [`v4.4.0`](https://github.com/mongodb/mongo-python-driver/releases/tag/4.4.0): PyMongo 4.4.0

[Compare Source](https://github.com/mongodb/mongo-python-driver/compare/4.3.3...4.4.0)

Release notes: https://www.mongodb.com/community/forums/t/pymongo-4-4-released/232211

</details>

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requirements.txt

@@ -7,6 +7,6 @@ aiofiles~=23.1.0
 tgcrypto==1.2.5
 aiohttp~=3.8.4
 psutil==5.9.5
-pymongo==4.3.3
+pymongo==4.4.0
 pillow~=9.5.0
 ujson==5.8.0