Fix build script to ensure TMPDIR is set correctly before buildah command

build.sh

@@ -9,5 +9,5 @@ export TMPDIR=/data/buildah
 mkdir -p /data/buildah
 
 echo "[INFO] Build de l'image avec sudo..."
-buildah TMPDIR=/data/buildah bud --isolation chroot -t localhost/${IMAGE_NAME}:${IMAGE_TAG} .
+TMPDIR=/data/buildah buildah bud --isolation chroot -t localhost/${IMAGE_NAME}:${IMAGE_TAG} .