web_deploy: use download_playbook function directly

These scripts were re-implementing the download logic of download_playbook
with the difference being using a different name for the temporary file,
but we don't care about the temporary file name

Another difference was to edit slapcache.cfg once it is downloaded,
this part, we need to keep it.

master/bt5/slapos_web_deploy/PathTemplateItem/web_page_module/deploy_testing_channel.txt

@@ -4,9 +4,4 @@ if [ ! -f /etc/opt/slapcache.cfg ]; then
 fi
 sed -i "s/key = slapos-global-key/key = slapos-global-official-vifib-testing-key/g" /etc/opt/slapcache.cfg 
 
-DFILE=$(mktemp -d -t tmpplaybook_unstable"$(basename "$0")".XXXXXXXXXXXX)
-TFILE="archive.tar.gz"
-cd "$DFILE" || exit 1
-slapcache-download --destination=$TFILE
-tar -xzvf $TFILE
-rm $TFILE
+download_playbook

master/bt5/slapos_web_deploy/PathTemplateItem/web_page_module/deploy_unstable_channel.txt

@@ -4,9 +4,4 @@ if [ ! -f /etc/opt/slapcache.cfg ]; then
 fi
 sed -i "s/key = slapos-global-key/key = slapos-global-unstable-key/g" /etc/opt/slapcache.cfg 
 
-DFILE=$(mktemp -d -t tmpplaybook_unstable"$(basename "$0")".XXXXXXXXXXXX)
-TFILE="archive.tar.gz"
-cd "$DFILE" || exit 1
-slapcache-download --destination=$TFILE
-tar -xzvf $TFILE
-rm $TFILE
+download_playbook

master/bt5/slapos_web_deploy/PathTemplateItem/web_page_module/deploy_vifib_channel.txt

@@ -4,9 +4,4 @@ if [ ! -f /etc/opt/slapcache.cfg ]; then
 fi
 sed -i "s/key = slapos-global-key/key = slapos-global-official-vifib-key/g" /etc/opt/slapcache.cfg 
 
-DFILE=$(mktemp -d -t tmpplaybook_unstable"$(basename "$0")".XXXXXXXXXXXX)
-TFILE="archive.tar.gz"
-cd "$DFILE" || exit 1
-slapcache-download --destination=$TFILE
-tar -xzvf $TFILE
-rm $TFILE
\ No newline at end of file
+download_playbook