docs: Update CONTRIBUTORS.md with the latest contributors (#885)

Co-authored-by: pyansys-ci-bot <[email protected]>
Co-authored-by: Revathy Venugopal <[email protected]>

Author: 3 people

CONTRIBUTORS.md

@@ -22,5 +22,6 @@
 * [Raphael Heiniger](https://github.com/RaphaelHeiniger)
 * [Revathy Venugopal](https://github.com/Revathyvenugopal162)
 * [Roberto Pastor Muela](https://github.com/RobPasMue)
+* [Ryoma Okamoto](https://github.com/rokamoto26)
 * [wenfengye](https://github.com/wenfengye)
 * [wenhuiuy](https://github.com/wenhuiuy)

doc/changelog/885.documentation.md

@@ -0,0 +1 @@
+Update ``CONTRIBUTORS.md`` with the latest contributors