chore(deps): update mccutchen/go-httpbin docker tag to v2.25.0 (#197)

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

Author: renovate[bot]

charts/ext-authz-token-exchange-e2e/values.yaml

@@ -107,7 +107,7 @@ fakeTokenEndpoint:
 teamApp:
   enabled: false
   name: httpbin
-  image: mccutchen/go-httpbin:2.24.0
+  image: mccutchen/go-httpbin:2.25.0
   imagePullPolicy: IfNotPresent
   port: 8080
   gatewayNamespace: gke-gateway