package/libressl: security bump to version 3.1.5

Fixes the following security issues:

    * Malformed ASN.1 in a certificate revocation list or a timestamp
      response token can lead to a NULL pointer dereference.

https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.1.5-relnotes.txt

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libressl/libressl.hash

@@ -1,4 +1,4 @@
 # From https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/SHA256
-sha256  414c149c9963983f805a081db5bd3aec146b5f82d529bb63875ac941b25dcbb6  libressl-3.1.4.tar.gz
+sha256  2c13ddcec5081c0e7ba7f93d8370a91911173090f1922007e1d90de274500494  libressl-3.1.5.tar.gz
 # Locally computed
 sha256  5c63613f008f16a9c0025c096bbd736cecf720494d121b5c5203e0ec6e5955b1  COPYING

package/libressl/libressl.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBRESSL_VERSION = 3.1.4
+LIBRESSL_VERSION = 3.1.5
 LIBRESSL_SITE = https://ftp.openbsd.org/pub/OpenBSD/LibreSSL
 LIBRESSL_LICENSE = ISC (new additions), OpenSSL or SSLeay (original OpenSSL code)
 LIBRESSL_LICENSE_FILES = COPYING