relax release branch version extraction to accept any release/x.y.z* pattern

Signed-off-by: pvijayakrish <pvijayakrish@nvidia.com>

Author: pvijayakrish

.github/workflows/release.yml

@@ -49,7 +49,7 @@ jobs:
             exit 1
           fi
 
-          if [[ ! "$BRANCH_NAME" =~ ^release/[0-9]+\.[0-9]+\.[0-9].+ ]]; then
+          if [[ ! "$BRANCH_NAME" =~ ^release/[0-9]+\.[0-9]+\.[0-9]+ ]]; then
             echo "Error: workflow_dispatch must be triggered from a release/* branch"
             echo "Current branch: $BRANCH_NAME"
             exit 1