Add a retention period of 7 days

CHANGELOG.md

@@ -6,7 +6,7 @@ Note that the only difference between `v2` and `v3` of the CodeQL Action is the
 
 ## [UNRELEASED]
 
-No user facing changes.
+- Change the retention period for uploaded debug artifacts to 7 days. Previously, this was whatever the repository default was. [#2079](https://github.com/github/codeql-action/pull/2079)
 
 ## 3.23.0 - 08 Jan 2024
 

src/debug-artifacts.ts

@@ -49,7 +49,11 @@ export async function uploadDebugArtifacts(
     sanitizeArifactName(`${artifactName}${suffix}`),
     toUpload.map((file) => path.normalize(file)),
     path.normalize(rootDir),
-    { continueOnError: true },
+    {
+      continueOnError: true,
+      // ensure we don't keep the debug artifacts around for too long since they can be large.
+      retentionDays: 7,
+    },
   );
 }