resources: Fix broken URL for riscv-hello-checkpoint

Change-Id: I083894aa5ad265fe2561e2a0fe871f3371cbe795
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-resources/+/68280
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby Bruce <bbruce@ucdavis.edu>
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
diff --git a/resources.json b/resources.json
index f9620ef..02b9d2c 100644
--- a/resources.json
+++ b/resources.json
@@ -494,7 +494,7 @@
             "md5sum" : "5c6e787965cecc4ebbee0119886f358c",
             "source" : null,
             "is_tar_archive" : true,
-            "url": "{url_base}/checkpoints/riscv-hello-example-checkpoint-20220222.tar"
+            "url": "{url_base}/checkpoints/riscv-hello-example-checkpoint-20230222.tar"
         },
         {
             "type": "resource",