Update graalvm test docker images to ol8+

[mpeddada1]

Update image from ol7 to ol8+.

Currently, updating the base image to ol9 results in the following error:

[91m/bin/sh: line 1: yum: command not found
Step #0 - "graalvm-a-build": The command '/bin/sh -c gu install native-image &&     yum update -y &&     yum install -y wget unzip git &&     wget -q https://archive.apache.org/dist/maven/maven-3/3.9.4/binaries/apache-maven-3.9.4-bin.zip -O /tmp/maven.zip &&     unzip /tmp/maven.zip -d /tmp/maven &&     mv /tmp/maven/apache-maven-3.9.4 /usr/local/lib/maven &&     rm /tmp/maven.zip &&     ln -s $JAVA_HOME/lib $JAVA_HOME/conf' returned a non-zero code: 127