Unify workflows and fix package directory creation issue

Author: Hirose-Sebastian-Taikai

.github/workflows/deploy.yml

@@ -27,7 +27,7 @@ jobs:
       with:
         python-version: '3.10'
 
-    - name: Install dependencies for Amazon Linux 2
+    - name: Build Amazon Linux 2 compatible package
       run: |
         python -m pip install --upgrade pip
         # Amazon Linux 2コンテナで依存関係をビルド
@@ -37,6 +37,7 @@ jobs:
             yum update -y
             yum install -y python3 python3-pip
             python3 -m pip install --upgrade pip
+            mkdir -p package
             python3 -m pip install -r requirements.txt -t ./package
             echo 'Dependencies installed for Amazon Linux 2'
             ls -la ./package
@@ -122,7 +123,7 @@ jobs:
           ENVIRONMENT="development"
         fi
         
-        echo "Deployment completed for branch: ${{ github.ref }}"
+        echo "Amazon Linux 2 deployment completed for branch: ${{ github.ref }}"
         echo "Stack name: $STACK_NAME"
         echo "Environment: $ENVIRONMENT"
         echo "Commit: ${{ github.sha }}"