[libheif/el9] (2 commits) ...Don't build rav1e and SVT-AV1 as plugins (rfbz#6532)
Summary of changes:
b51e885... Add comment (*)
1cb37db... Don't build rav1e and SVT-AV1 as plugins (rfbz#6532) (*)
(*) This commit already existed in another branch; no separate mail sent