Fix syntax error in update to lychee config file (llm-d#1869)

Signed-off-by: Shmuel Kallner <kallner@il.ibm.com>

Author: shmuelk

.lychee.toml

@@ -1,8 +1,8 @@
 # Ignore transient failures on gnu.org (it sometimes refuses connections)
 exclude = [
   "^https://www.gnu.org/software/make/?$",
-  "^https://www.envoyproxy.io/"
-  "^https://gateway-api-inference-extension.sigs.k8s.io/guides/serving-multiple-inference-pools-latest/"
+  "^https://www.envoyproxy.io/",
+  "^https://gateway-api-inference-extension.sigs.k8s.io/guides/serving-multiple-inference-pools-latest/",
   "^https://github.com/kubernetes-sigs/gateway-api-inference-extension/blob/main/site-src/guides/metrics-and-observability.md"
 ]