chore: [StepSecurity] Apply security best practices (#108)

Co-authored-by: stepsecurity-app[bot] <188008098+stepsecurity-app[bot]@users.noreply.github.com>
Co-authored-by: krystal <56278409+theekrystallee@users.noreply.github.com>

Author: stepsecurity-app[bot]

.github/workflows/auto-release-notes.yml

@@ -17,6 +17,11 @@ jobs:
   update-release-notes:
     runs-on: hashgraph-docs-linux-medium
     steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
+        with:
+          egress-policy: audit
+
       - name: Checkout docs repo
         uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
 

.github/workflows/update-node-tables.yml

@@ -13,6 +13,11 @@ jobs:
   update-tables:
     runs-on: hashgraph-docs-linux-medium
     steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
+        with:
+          egress-policy: audit
+
       - name: Checkout repository
         uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0