ci(workflows): remove unnecessary expect installation and unbuffer from CI

Remove the installation of the expect package and usage of unbuffer
in the CI test job. These were likely added during debugging phases
for handling interactive PTY sessions or test output buffering, but
are no longer required. This simplifies the workflow and reduces CI
setup time.

Author: MBanucu

.github/workflows/ci.yml

@@ -47,11 +47,8 @@ jobs:
       - name: Build
         run: bun run build:all:prod
 
-      - name: Install expect
-        run: sudo apt-get update && sudo apt-get install -y expect
-
       - name: Run tests
-        run: unbuffer bun test
+        run: bun test
 
   dependency-review:
     runs-on: ubuntu-24.04