ppf-common: fix ad-hoc ansible for toolkit inventory

Add --become to ansible_cmd (needed when connecting as
ansible user). Add cd /tmp to podman_cmd so sudo -u podman
doesn't fail on inaccessible /home/ansible cwd.

tools/lib/ppf-common.sh

@@ -105,7 +105,7 @@ ansible_cmd() {
         # shellcheck disable=SC1090
         . "$ANSIBLE_VENV"
         cd "$ANSIBLE_DIR"
-        ansible -i "$PPF_INVENTORY" "$@"
+        ansible -i "$PPF_INVENTORY" --become "$@"
     )
 }
 
@@ -130,7 +130,7 @@ podman_cmd() {
     local host="$1"; shift
     local cmd="$*"
     ansible_cmd "$host" -m raw -a \
-        "uid=\$(id -u podman) && sudo -u podman XDG_RUNTIME_DIR=/run/user/\$uid $cmd"
+        "uid=\$(id -u podman) && cd /tmp && sudo -u podman XDG_RUNTIME_DIR=/run/user/\$uid $cmd"
 }
 
 # Run a podman-compose subcommand on a remote host.