Added GraalVM for JDK 21

[sachin-pikle]

Description

Added GraalVM for JDK 21

Fixes # (issues)

New samples # (demos / Illustrations )

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

• Paid

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• Updated/Sorted AIO.md & README files (main/sub/individual) files
• Updated recent samples sections of README.md
• My changes generate no new warnings.
• All the sensitive information are masked or removed.
• All the links mentioned are valid and tested.
• Image names are seperated only with '-'.
• Added instruction to clone only this sample and links to other common sample pages.