docs: Add note about automated version bumps (#510)

Just a small change to trigger a release. Turns out if a PR has one
commit with a skip token, it skips the release workflow.

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Low risk: this is a comment-only change in `pyproject.toml` with no
runtime or dependency impact.
> 
> **Overview**
> Adds an inline comment next to `version` in `pyproject.toml`
clarifying that release automation updates the value and it should not
be manually edited.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
a428551. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: vishal-bala

pyproject.toml

@@ -1,5 +1,6 @@
 [project]
 name = "redisvl"
+# NOTE: This version value is automatically incremented by the release workflow - do not manually adjust it.
 version = "0.14.0"
 description = "Python client library and CLI for using Redis as a vector database"
 authors = [{ name = "Redis Inc.", email = "applied.ai@redis.com" }]