Switch wiki deployment to the openra user with ssh auth

packaging/update-wiki.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+echo "Branch is $1"
+
 case "$1" in
 	"bleed")
 		exit
@@ -17,6 +19,13 @@ case "$1" in
 esac
 
 echo "Updating https://github.com/OpenRA/OpenRA/wiki/"
+
+SSH_KEY="$HOME"/.ssh/id_rsa
+
+mkdir -p "$(dirname "$SSH_KEY")"
+openssl aes-256-cbc -k "$KEY" -in ssh.enc -d -out "$SSH_KEY"
+chmod 0600 "$SSH_KEY"
+
 rm -rf $HOME/openra-wiki
 git clone git@github.com:OpenRA/OpenRA.wiki.git $HOME/openra-wiki
 cp -fr ../DOCUMENTATION.md "${HOME}/openra-wiki/Traits${TAG}.md"
@@ -27,6 +36,8 @@ git config --local user.email "orabot@users.noreply.github.com"
 git config --local user.name "orabot"
 git add "Traits${TAG}.md"
 git add "Lua API${TAG}.md"
-git commit -m "Update trait and scripting documentation for branch $1"
+git commit -m "Update trait and scripting documentation for branch $1" &&
 git push origin master
 popd
+
+shred -u "$SSH_KEY"