docs: Fix return type for ST_CoordDim

[jkhaliqi]

Description

Change the docs return type to ST_CoordDim

Motivation and Context

Match the docs with the java code for ST_CoorDim return type to be tinyint:

presto/presto-main-base/src/main/java/com/facebook/presto/geospatial/GeoFunctions.java

Line 340 in 1a4b462

@SqlType(TINYINT)

related to: #26344

Impact

Test Plan

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[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

This PR aligns the ST_CoordDim documentation with its Java implementation by updating the return type to tinyint in the Sphinx docs.

File-Level Changes

Change	Details	Files
Aligned ST_CoordDim return type in docs with Java implementation	Changed documented return type to TINYINT in the function signature Updated descriptive text to reference tinyint rather than integer	presto-docs/src/main/sphinx/functions/geospatial.rst

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[sourcery-ai]

Hey there - I've reviewed your changes and they look great!

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[steveburnett]

LGTM! (docs)

Pull branch, local doc build.

Thanks for the fix!