Pin advisory workflow to full infra merge SHA

Use 40-character ref for intentproof-infra reusable
workflow after merge of PR #20.

Signed-off-by: Nathan Gillett <nathan@intentproof.io>

Author: Nathan Gillett

.github/workflows/security-advisory-publish.yml

@@ -18,7 +18,7 @@ permissions:
 
 jobs:
   verify-osv-mirror:
-    uses: IntentProof/intentproof-infra/.github/workflows/security-advisory-publish.yml@bba7e1e
+    uses: IntentProof/intentproof-infra/.github/workflows/security-advisory-publish.yml@064f4a1fb91998960343fb14cb912cbbd6c4cd82
     with:
       ghsa_id: ${{ inputs.ghsa_id }}
       cve_id: ${{ inputs.cve_id }}