chore(deps): bump step-security/harden-runner from 2.17.0 to 2.18.0 (hiero-ledger#2165)

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Author: dependabot[bot]

.github/workflows/publish.yml

@@ -62,7 +62,7 @@ jobs:
 
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@f808768d1510423e83855289c910610ca9b43176 # v2.17.0
+        uses: step-security/harden-runner@6c3c2f2c1c457b00c10c4848d6f5491db3b629df # v2.18.0
         with:
           egress-policy: audit