Remove unrelease prefix from CHANGELOG

Signed-off-by: coleramos425 <[email protected]>

ROCm release v6.2.2

ROCm release vrocm-test-09212024

ROCm release v6.2.1

ROCm release v6.2.0

Update VERSION, CHANGELOG, and citation for next release

Signed-off-by: coleramos425 <[email protected]>

Update AUTHORS

Signed-off-by: Cole Ramos <[email protected]>

apply formatter

Signed-off-by: Karl W Schulz <[email protected]>

tagging tech preview for future 2.x release

Update CHANGES

Signed-off-by: Cole Ramos <[email protected]>