package/mbedtls: security bump to version 2.28.5
Fixes the following security issue:
CVE-2023-43615: Buffer overread in TLS stream cipher suites
https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2023-10-1/
Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
(cherry picked from commit 26762e30090585e8c64333d3ffe4249e7a0b0f43)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>