CLSA-2026-1779190223 opensc: Fix of 5 CVEs

CVE-2023-5992: implement constant-time PKCS1 v1.5 depadding to prevent Bleichenbacher/Marvin-style timing attacks - CVE-2025-49010: fix stack buffer overflow write in iso7816 GET RESPONSE - CVE-2025-66037: fix out-of-bounds heap read in scpkcs15pubkeyfromspkifields - CVE-2025-66038: fix buffer...