fix_missing_brpc_version_in_release: update tools/get_brpc_version.sh

tools/get_brpc_version.sh

 #!/bin/bash
 
-version=$(git rev-parse --short HEAD 2> /dev/null)
+output=$(cat $1/RELEASE_VERSION)
+version=$(git log -1 --format="%h@%cI" 2> /dev/null)
 branch=$(git rev-parse --abbrev-ref HEAD 2> /dev/null)
 if [ $? -eq 0 ]
 then
-    echo $version-$branch
-else
-    cat $1/RELEASE_VERSION
+    output=$output-$branch/$version
 fi
+echo $output