Bump x509-limbo and/or wycheproof in CI (#10555)

Co-authored-by: pyca-boringbot[bot] <pyca-boringbot[bot][email protected]>

Author: pyca-boringbot[bot]

.github/actions/fetch-vectors/action.yml

@@ -16,5 +16,5 @@ runs:
       with:
         repository: "C2SP/x509-limbo"
         path: "x509-limbo"
-        # Latest commit on the x509-limbo main branch, as of Mar 08, 2024.
-        ref: "1b1c161b8b4cb03b90c236450bfb2f6567dd7a03" # x509-limbo-ref
+        # Latest commit on the x509-limbo main branch, as of Mar 09, 2024.
+        ref: "d12e21223160fb03db412c3060e897ffd3e836d5" # x509-limbo-ref