fix tz unbound varible

ct/casaos-v5.sh

@@ -368,6 +368,7 @@ FEATURES="keyctl=1,nesting=1"
 fi
 TEMP_DIR=$(mktemp -d)
 pushd $TEMP_DIR >/dev/null
+export tz=$timezone
 export ST=$FUSE
 export DISABLEIPV6=$DISABLEIP6
 export APPLICATION=$APP

ct/docker-v5.sh

@@ -362,6 +362,7 @@ FEATURES="keyctl=1,nesting=1"
 fi
 TEMP_DIR=$(mktemp -d)
 pushd $TEMP_DIR >/dev/null
+export tz=$timezone
 export ST=$FUSE
 export DISABLEIPV6=$DISABLEIP6
 export APPLICATION=$APP

ct/homeassistant-v5.sh

@@ -433,6 +433,7 @@ FEATURES="keyctl=1,nesting=1"
 fi
 TEMP_DIR=$(mktemp -d)
 pushd $TEMP_DIR >/dev/null
+export tz=$timezone
 export ST=$FUSE
 export DISABLEIPV6=$DISABLEIP6
 export APPLICATION=$APP

ct/umbrel-v5.sh

@@ -367,6 +367,7 @@ FEATURES="keyctl=1,nesting=1"
 fi
 TEMP_DIR=$(mktemp -d)
 pushd $TEMP_DIR >/dev/null
+export tz=$timezone
 export ST=$FUSE
 export DISABLEIPV6=$DISABLEIP6
 export APPLICATION=$APP