GHSA-92QF-FCPH-V5WR nextflow auth login command has incorrect default permissions

Impact nextflow auth login persists Seqera Platform OIDC tokens to $NXFHOME:-/.nextflow/seqera-auth.config. The file is created via Java NIO without specifying file permissions, so under the default umask 022 it lands at mode 0644 world-readable. On a multi-user POSIX host — typically an HPC logi...