update log path

release_files/darwin_pkg/postinstall

@@ -2,6 +2,7 @@
 
 APP=/Applications/NetBird.app
 AGENT=/usr/local/bin/netbird
+LOG_FILE=/var/log/netbird/client_install.log
 
 {
     echo "Installing NetBird..."
@@ -28,4 +29,4 @@ AGENT=/usr/local/bin/netbird
 
     echo "Finished Netbird installation successfully"
     exit 0 # all good
-} > /tmp/my_postinstall.log
+} >> $LOG_FILE

release_files/darwin_pkg/preinstall

@@ -1,6 +1,8 @@
 #!/bin/sh
 
+LOG_FILE=/var/log/netbird/client_install.log
+
 {
     echo "Preinstall complete"
     exit 0 # all good
-} > /tmp/my_preinstall.log
+} > $LOG_FILE