Update shared zizmor workflow to v0.4.0 (#1207)

Author: opentelemetrybot

.github/workflows/zizmor.yml

@@ -15,4 +15,4 @@ jobs:
     permissions:
       contents: read # for actions/checkout
       security-events: write # for zizmor to upload SARIF results
-    uses: open-telemetry/shared-workflows/.github/workflows/zizmor.yml@7c49790392da7de86fdb4bb968446f9cb8461eb8 # v0.3.1
+    uses: open-telemetry/shared-workflows/.github/workflows/zizmor.yml@62d5939b47144252763c5ff9fffe8c20d76cd806 # v0.4.0