Fix the download path of functions nar pkg
### Motivation
Generally, users rarely change the configuration of downloadDirectory. If we store it in the /tmp directory, the file will be invalid after a period of time.
### Modifications
Replace /tmp/pulsar_functions with download/pulsar_functions
@@ -38,7 +38,7 @@ zooKeeperOperationTimeoutSeconds: 30
################################
numFunctionPackageReplicas: 1
-downloadDirectory: /tmp/pulsar_functions
+downloadDirectory: download/pulsar_functions
# Classname of Pluggable JVM GC metrics logger that can log GC specific metrics
# jvmGCMetricsLoggerClassName:
