feat(security): security best practices from StepSecurity (#10480)

Signed-off-by: StepSecurity Bot <bot@stepsecurity.io>
Co-authored-by: stepsecurity-app[bot] <188008098+stepsecurity-app[bot]@users.noreply.github.com>
Co-authored-by: Pepe Fagoaga <pepe@prowler.com>

.github/workflows/ui-e2e-tests-v2.yml

@@ -15,13 +15,12 @@ on:
       - 'ui/**'
       - 'api/**'  # API changes can affect UI E2E
 
-permissions:
-  contents: read
-
 jobs:
   # First, analyze which tests need to run
   impact-analysis:
     if: github.repository == 'prowler-cloud/prowler'
+    permissions:
+      contents: read
     uses: ./.github/workflows/test-impact-analysis.yml
 
   # Run E2E tests based on impact analysis
@@ -75,8 +74,15 @@ jobs:
       # Pass E2E paths from impact analysis
       E2E_TEST_PATHS: ${{ needs.impact-analysis.outputs.ui-e2e }}
       RUN_ALL_TESTS: ${{ needs.impact-analysis.outputs.run-all }}
+    permissions:
+      contents: read
 
     steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@fa2e9d605c4eeb9fcad4c99c224cee0c6c7f3594 # v2.16.0
+        with:
+          egress-policy: audit
+
       - name: Checkout repository
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
@@ -273,7 +279,14 @@ jobs:
       needs.impact-analysis.outputs.has-ui-e2e != 'true' &&
       needs.impact-analysis.outputs.run-all != 'true'
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@fa2e9d605c4eeb9fcad4c99c224cee0c6c7f3594 # v2.16.0
+        with:
+          egress-policy: audit
+
       - name: No E2E tests needed
         run: |
           echo "## E2E Tests Skipped" >> $GITHUB_STEP_SUMMARY