Add tmux installation to additional GitHub workflows

.github/workflows/dummy-agent-test.yml

@@ -36,6 +36,8 @@ jobs:
       - name: Set up Docker Buildx
         id: buildx
         uses: docker/setup-buildx-action@v3
+      - name: Install tmux
+        run: sudo apt-get update && sudo apt-get install -y tmux
       - name: Install poetry via pipx
         run: pipx install poetry
       - name: Set up Python

.github/workflows/eval-runner.yml

@@ -31,6 +31,8 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: Install tmux
+        run: sudo apt-get update && sudo apt-get install -y tmux
       - name: Install poetry via pipx
         run: pipx install poetry
 

.github/workflows/review-pr.yml

@@ -22,9 +22,9 @@ jobs:
       uses: actions/setup-python@v5
       with:
         python-version: '3.12'
-    - name: install git, github cli
+    - name: install git, github cli, and tmux
       run: |
-        sudo apt-get install -y git gh
+        sudo apt-get update && sudo apt-get install -y git gh tmux
         git config --global --add safe.directory $PWD
     - name: Checkout Repository
       uses: actions/checkout@v4