Update tailscale/github-action digest to 6cae46e

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/actions/setup/action.yaml

@@ -34,7 +34,7 @@ runs:
         aws-region: ${{ inputs.region }}
 
     - name: Connect runner to tailscale
-      uses: tailscale/github-action@84a3f23bb4d843bcf4da6cf824ec1be473daf4de # v3
+      uses: tailscale/github-action@6cae46e2d796f265265cfcf628b72a32b4d7cade # v3
       with:
         oauth-client-id: ${{ inputs.tailscale_oauth_client_id }}
         oauth-secret: ${{ inputs.tailscale_oauth_client_secret }}