cargo-deny: Remove withdrawn "ring is unmaintained" "advisory"

sigh...

Author: Turbo87

deny.toml

@@ -70,10 +70,6 @@ db-urls = ["https://github.com/rustsec/advisory-db"]
 ignore = [
     # "paste is unmaintained"
     "RUSTSEC-2024-0436",
-
-    # "ring is unmaintained" – we are aware, but there is not much we can do
-    # about it on our side for now :-/
-    "RUSTSEC-2025-0007",
 ]
 # Threshold for security vulnerabilities, any vulnerability with a CVSS score
 # lower than the range specified will be ignored. Note that ignored advisories