Make sure the command works in both centos and ubuntu. (#11894)

make one bash condition compatible with POSIX

tools/ci_build/github/linux/docker/build_scripts/install-entrypoint.sh

@@ -27,7 +27,8 @@ if [ "${AUDITWHEEL_POLICY}" = "musllinux_1_1" ]; then
     apk add --no-cache bash
 fi
 
-if  command -v yum &> /dev/null ; then
+# https://www.shellcheck.net/wiki/SC3020
+if command -v yum 2>&1 ; then
     yum install -y yum-plugin-versionlock
     yum versionlock cuda* libcudnn* libnccl*
 fi