ci/deps: Bump toolshed/actions -> 0.4.0 (#41)

Signed-off-by: Ryan Northey <ryan@synca.io>

Author: phlax

.github/workflows/envoy-sync.yaml

@@ -23,7 +23,7 @@ jobs:
       }}
     steps:
     - id: appauth
-      uses: envoyproxy/toolshed/gh-actions/appauth@8a8f4f64d8bccc99427740197479c0a5353ca8de  # actions-v0.0.18
+      uses: envoyproxy/toolshed/actions/appauth@598eacce15ab5f208102a2fd5669292868002701  # actions-v0.4.0
       with:
         key: ${{ secrets.ENVOY_CI_UPDATE_BOT_KEY }}
         app_id: ${{ secrets.ENVOY_CI_UPDATE_APP_ID }}

.github/workflows/update.yml

@@ -34,7 +34,7 @@ jobs:
       env:
         GITHUB_TOKEN: ${{ github.token }}
 
-    - uses: envoyproxy/toolshed/gh-actions/gcp/setup@actions-v0.3.14
+    - uses: envoyproxy/toolshed/actions/gcp/setup@598eacce15ab5f208102a2fd5669292868002701  # actions-v0.4.0
       name: Setup GCP (cache)
       if: ${{ github.event_name != 'pull_request' }}
       with: