feat(security): block mode for hardened runners (#10482)

.github/workflows/api-container-checks.yml

@@ -27,10 +27,12 @@ jobs:
       contents: read
 
     steps:
-      - name: Harden the runner (Audit all outbound calls)
+      - name: Harden Runner
         uses: step-security/harden-runner@fa2e9d605c4eeb9fcad4c99c224cee0c6c7f3594 # v2.16.0
         with:
-          egress-policy: audit
+          egress-policy: block
+          allowed-endpoints: >
+            github.com:443
 
       - name: Checkout repository
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
@@ -70,10 +72,28 @@ jobs:
       pull-requests: write
 
     steps:
-      - name: Harden the runner (Audit all outbound calls)
+      - name: Harden Runner
         uses: step-security/harden-runner@fa2e9d605c4eeb9fcad4c99c224cee0c6c7f3594 # v2.16.0
         with:
-          egress-policy: audit
+          egress-policy: block
+          allowed-endpoints: >
+            api.github.com:443
+            mirror.gcr.io:443
+            check.trivy.dev:443
+            github.com:443
+            registry-1.docker.io:443
+            auth.docker.io:443
+            production.cloudflare.docker.com:443
+            debian.map.fastlydns.net:80
+            release-assets.githubusercontent.com:443
+            pypi.org:443
+            files.pythonhosted.org:443
+            www.powershellgallery.com:443
+            aka.ms:443
+            cdn.powershellgallery.com:443
+            _http._tcp.deb.debian.org:443
+            powershellinfraartifacts-gkhedzdeaghdezhr.z01.azurefd.net:443
+
 
       - name: Checkout repository
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2