misc: Fix daily-tests

1. Typo in container.
2. Add compression level to minimize size of generated artifact.

Change-Id: I854e814162fb434ad50a64e3070b943905e4134b

.github/workflows/daily-tests.yaml

@@ -74,7 +74,7 @@ jobs:
     # gem5 build artifacts when running the long tests.
     merge-gem5-build-artifacts:
         runs-on: [self-hosted, linux, x64]
-        container: ghcr.io/gem5/ubuntu-24.04_all-dependencies:latestt
+        container: ghcr.io/gem5/ubuntu-24.04_all-dependencies:latest
         needs: [build-gem5, name-artifacts]
         steps:
             - name: Merge gem5 build artifacts
@@ -83,6 +83,7 @@ jobs:
                   name: ${{needs.name-artifacts.outputs.build-name}}
                   pattern: ${{needs.name-artifacts.outputs.build-name}}*
                   retention-days: 1
+                  compression-level: 9
 
 
   # this builds both unittests.fast and unittests.debug