package/dropbear: security bump to version 2025.88

Fixes CVE-2025-47203.
https://security-tracker.debian.org/tracker/CVE-2025-47203

Release notes:
https://github.com/mkj/dropbear/releases/tag/DROPBEAR_2025.88

Signed-off-by: Kadambini Nema <kadambini.nema@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 915a351e2fadb334b5b1eb0e5387b7a5264168a9)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>

package/dropbear/dropbear.hash

@@ -1,5 +1,5 @@
 # From https://matt.ucc.asn.au/dropbear/releases/SHA256SUM.asc
-sha256  738b7f358547f0c64c3e1a56bbc5ef98d34d9ec6adf9ccdf01dc0bf2caa2bc8d  dropbear-2025.87.tar.bz2
+sha256  783f50ea27b17c16da89578fafdb6decfa44bb8f6590e5698a4e4d3672dc53d4  dropbear-2025.88.tar.bz2
 
 # License file, locally computed
 sha256  a99ce657d790b761c132ee7e0de18edb437ae6361e536d991c6a12f36e770445  LICENSE

package/dropbear/dropbear.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-DROPBEAR_VERSION = 2025.87
+DROPBEAR_VERSION = 2025.88
 DROPBEAR_SITE = https://matt.ucc.asn.au/dropbear/releases
 DROPBEAR_SOURCE = dropbear-$(DROPBEAR_VERSION).tar.bz2
 DROPBEAR_LICENSE = MIT, BSD-2-Clause, Public domain