Bump the pip group across 1 directory with 5 updates

Bumps the pip group with 5 updates in the /server directory:

| Package | From | To |
| --- | --- | --- |
| [dnspython](https://github.com/rthalley/dnspython) | `2.1.0` | `2.6.1` |
| [flask](https://github.com/pallets/flask) | `2.0.1` | `2.2.5` |
| [pymongo](https://github.com/mongodb/mongo-python-driver) | `3.12.0` | `4.6.3` |
| [gunicorn](https://github.com/benoitc/gunicorn) | `20.0.4` | `23.0.0` |
| [flask-cors](https://github.com/corydolphin/flask-cors) | `3.0.10` | `6.0.0` |



Updates `dnspython` from 2.1.0 to 2.6.1
- [Release notes](https://github.com/rthalley/dnspython/releases)
- [Changelog](https://github.com/rthalley/dnspython/blob/main/doc/whatsnew.rst)
- [Commits](rthalley/dnspython@v2.1.0...v2.6.1)

Updates `flask` from 2.0.1 to 2.2.5
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](pallets/flask@2.0.1...2.2.5)

Updates `pymongo` from 3.12.0 to 4.6.3
- [Release notes](https://github.com/mongodb/mongo-python-driver/releases)
- [Changelog](https://github.com/mongodb/mongo-python-driver/blob/master/doc/changelog.rst)
- [Commits](mongodb/mongo-python-driver@3.12.0...4.6.3)

Updates `gunicorn` from 20.0.4 to 23.0.0
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](benoitc/gunicorn@20.0.4...23.0.0)

Updates `flask-cors` from 3.0.10 to 6.0.0
- [Release notes](https://github.com/corydolphin/flask-cors/releases)
- [Changelog](https://github.com/corydolphin/flask-cors/blob/main/CHANGELOG.md)
- [Commits](corydolphin/flask-cors@3.0.10...6.0.0)

---
updated-dependencies:
- dependency-name: dnspython
  dependency-version: 2.6.1
  dependency-type: direct:production
  dependency-group: pip
- dependency-name: flask
  dependency-version: 2.2.5
  dependency-type: direct:production
  dependency-group: pip
- dependency-name: pymongo
  dependency-version: 4.6.3
  dependency-type: direct:production
  dependency-group: pip
- dependency-name: gunicorn
  dependency-version: 23.0.0
  dependency-type: direct:production
  dependency-group: pip
- dependency-name: flask-cors
  dependency-version: 6.0.0
  dependency-type: direct:production
  dependency-group: pip
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

server/requirements.txt

@@ -1,7 +1,7 @@
-dnspython==2.1.0
-Flask==2.0.1
+dnspython==2.6.1
+Flask==2.2.5
 python-dotenv==0.19.0
-pymongo==3.12.0
-gunicorn==20.0.4
-flask-cors==3.0.10
+pymongo==4.6.3
+gunicorn==23.0.0
+flask-cors==6.0.0
 defusedxml==0.7.1