[SEDONA-140] Update Sedona Dependencies in R Package

[hersh-gupta]

Did you read the Contributor Guide?

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

Is this PR related to a JIRA ticket?

• Yes, the URL of the associated JIRA ticket is https://issues.apache.org/jira/browse/SEDONA-140. The PR name follows the format [SEDONA-XXX] my subject.

What changes were proposed in this PR?

• Updating the dependencies.R file to use Sedona version 1.2.0 instead of 1.0.0.

How was this patch tested?

• Ran devtools::test() locally and all tests passed.

Did this PR include necessary documentation updates?

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