[DOCS] Fix failed Python CI caused by the release of Shapely 2.0

[jiayuasu]

Did you read the Contributor Guide?

• Yes, I have read Contributor Rules and Contributor Development Guide

Is this PR related to a JIRA ticket?

• No, this is a documentation update. The PR name follows the format [DOCS] my subject.

What changes were proposed in this PR?

GeoPandas has Shapely as a hidden dependency with a version pattern shapely>=1.7: https://github.com/geopandas/geopandas/blob/main/requirements-dev.txt#L5

When pip installs GeoPandas, the latest shapely version will be installed automatically (if the user does not have one) as long as it is larger than 1.7.

Last night, Shapely publishes the 2.0 release which includes many breaking changes while GeoPandas only starts to support Shapely 2.0 in the latest GeoPandas 0.12

People who installs GeoPandas <0.12.0 will now have Shapely 2.0 install but the installed GeoPandas cannot work with it.

See the bug report I created on GeoPandas repo: geopandas/geopandas#2677

How was this patch tested?

Manually pin the Shapely version and passed CI

Did this PR include necessary documentation updates?

• No, this PR does not affect any public API so no need to change the docs.

[jorisvandenbossche]

Is there a reason you are pinning GeoPandas to exactly 0.6.0?
That is a very old release (>3 years)

[jiayuasu]

@jorisvandenbossche You are right. We should have updated it to a newer version. Will do it soon!