update apt cache separately

Author: Leonid Borchuk

.github/workflows/build-deb-cloudberry.yml

@@ -586,7 +586,8 @@ jobs:
 
             # Install DEB
             echo "Starting installation..."
-            if ! apt-get update && apt-get -y install "${DEB_FILE}"; then
+            apt-get update
+            if ! apt-get -y install "${DEB_FILE}"; then
               echo "::error::DEB installation failed"
               exit 1
             fi