[Backport] [Oracle GraalVM] [GR-66583] Backport to 23.1: Suspicious caching of asVarArgs in HostExecuteNode.doVarArgs()

[elkorchi]

What would you like to backport?

Oracle GraalVM backported commits:

( oracle/graal@1b545dc )

Describe the motivation for the backport.

Backported to Oracle GraalVM for JDK 21, fix version: graalvm-23.1.9