github: footprint: set ZEPHYR_SDK_INSTALL_DIR after the rebase

The ZEPHYR_SDK_INSTALL_DIR currently tries to read the SDK_VERSION at
the PR base ref, but this has only been introduced recently. Move the
ZEPHYR_SDK_INSTALL_DIR settings down as part of the build step after the
rebase so the file will always be found from now, even on old PRs.

Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
1 file changed