botan: upstep to 3.12.0

Upstep Botan from 2.19.4 to 3.12.0 to address vulnerabilities
reported by the BlackDuck scan on the Fast Track platforms.

The update covers the reported CVEs that are fixed in newer Botan releases:

CVE-2026-32877 / BDSA-2026-5921, fixed in Botan 3.11.0
CVE-2026-32884 / BDSA-2026-5922, fixed in Botan 3.11.0
CVE-2024-39312 / BDSA-2024-4197, fixed in Botan 3.5.0 and 2.19.5
CVE-2024-34702 / BDSA-2024-4196, fixed in Botan 3.5.0 and 2.19.5

References: PPW-2051
Signed-off-by: Matthias Franck <matthias.franck@softathome.com>

profiles/lcm.yml

@@ -4,7 +4,7 @@ description: Packages and features for LCM
 feeds:
   - name: feed_lcm
     uri: https://gitlab.com/prpl-foundation/prplos/feeds/feed_lcm.git
-    revision: main@aa1ebb655b0c7fbd5d5305755b4de8a32904604f
+    revision: main@f1405d90ab3c09148559250311a6c94bd71107ac
 
 packages:
   - cthulhu