ci: run selective disk cleanups in go CI tests

The Ceph upgrade tests have been flaky or reliably failing for various
Ceph/Rook versions due to mon out of space issues. Reinstate the disk
cleanup action, but do not clean up items that rely on the package
manager for removal. Package manager takes 2-4 minutes to operate and is
likely not worth it, even for saving 15+ GB of space.

From testing with this configuration, we can save 11GB of space in about
8 seconds of runtime. This should (hopefully) be plenty of space to keep
total disk usage below 95% and keep mons healthy, and the time needed is
negligible.

Signed-off-by: Blaine Gardner <blaine.gardner@ibm.com>
(cherry picked from commit e97103d859)

.github/workflows/integration-test-config-latest-k8s/action.yaml

@@ -8,6 +8,15 @@ inputs:
 runs:
   using: "composite"
   steps:
+    - name: Free Disk Space (Ubuntu)
+      uses: jlumbroso/free-disk-space@main
+      with:
+        tool-cache: true # removes old golang version but saves ~6GB
+        large-packages: false # takes a long time to run b/c package mgr
+        android: false # takes a long time to run b/c package mgr
+        dotnet: false # takes a long time to run b/c package mgr
+        haskell: false # takes a long time to run b/c package mgr
+
     - name: setup golang
       uses: actions/setup-go@v5
       with: