Update pyproj requirement from <2.2.2.0,>=1.9.5 to >=1.9.5,<2.2.3.0

Updates the requirements on [pyproj](https://github.com/pyproj4/pyproj) to permit the latest version.
- [Release notes](https://github.com/pyproj4/pyproj/releases)
- [Changelog](https://github.com/pyproj4/pyproj/blob/master/docs/history.rst)
- [Commits](pyproj4/pyproj@v1.9.5.1rel...2.2.2)

Signed-off-by: dependabot-preview[bot] <[email protected]>

requirements.txt

@@ -41,7 +41,7 @@ oauthlib==3.1.0
 pyopenssl==19.0.0
 
 # geopython dependencies
-pyproj>=1.9.5,<2.2.2.0
+pyproj>=1.9.5,<2.2.3.0
 OWSLib==0.18.0
 pycsw==2.4.0
 SQLAlchemy==1.3.7 # required by PyCSW