fix(deps): Update rand 0.8.5 to 0.8.6

This makes sure that the vulnerable `log` feature is unavailable.
And as such the advisory suppression is removed.

See: rust-random/rand#1772
Signed-off-by: Wiktor Kwapisiewicz <wiktor@metacode.biz>

Author: wiktor-k

Cargo.lock

@@ -2,7 +2,6 @@
 ignore = [
     "RUSTSEC-2023-0050", # nethsm-sdk-rs uses unmaintained multipart until something else becomes available: https://github.com/Nitrokey/nethsm-sdk-rs/issues/29
     "RUSTSEC-2023-0071", # side-channel attacks are not relevant for our use-case (only used in tests)
-    "RUSTSEC-2026-0097", # several uses of rand in the affected versions, but none using the "log" feature
 ]
 version = 2
 yanked = "deny"