Fix all GitHub Actions: Add missing checkout steps before custom actions

- Added 'Checkout code' step before 'Setup Python Environment' in all workflows
- Fixed python-style.yml: Added checkout for flake8-lint job
- Fixed pylint.yml: Added checkout for build job
- Fixed python-test.yml: Added checkout for all 5 jobs (static-analysis, tests, deepagent-test, provider-smoke, providers)
- Fixed prompt-evaluation.yml: Added checkout for evaluate job

This resolves the 'Can't find action.yml' error that occurs when trying to use
local actions (./.github/actions/setup-python-env) without first checking out
the repository code. All workflows now properly checkout before using custom actions.

Author: vinod0m

.github/workflows/prompt-evaluation.yml

@@ -21,6 +21,8 @@ jobs:
   evaluate:
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
       - name: Setup Python Environment
         uses: ./.github/actions/setup-python-env
         with:

.github/workflows/pylint.yml

@@ -12,6 +12,8 @@ jobs:
       matrix:
         python-version: ["3.10", "3.11", "3.12" ]
     steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
     - name: Setup Python Environment
       uses: ./.github/actions/setup-python-env
       with:

.github/workflows/python-style.yml

@@ -16,6 +16,8 @@ jobs:
   flake8-lint:
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
       - name: Setup Python Environment
         uses: ./.github/actions/setup-python-env
         with:

.github/workflows/python-test.yml

@@ -20,6 +20,8 @@ jobs:
     name: Static analysis & unit tests (one python)
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
       - name: Setup Python Environment
         uses: ./.github/actions/setup-python-env
         with:
@@ -50,6 +52,8 @@ jobs:
       matrix:
         python-version: [3.11, 3.12]
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
       - name: Setup Python Environment
         uses: ./.github/actions/setup-python-env
         with:
@@ -65,6 +69,8 @@ jobs:
     runs-on: ubuntu-latest
     needs: tests
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
       - name: Setup Python Environment
         uses: ./.github/actions/setup-python-env
         with:
@@ -80,6 +86,8 @@ jobs:
     runs-on: ubuntu-latest
     if: github.event_name == 'workflow_dispatch'
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
       - name: Setup Python Environment
         uses: ./.github/actions/setup-python-env
         with:
@@ -102,6 +110,8 @@ jobs:
       matrix:
         provider: [gemini, openai, ollama]
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
       - name: Setup Python Environment
         uses: ./.github/actions/setup-python-env
         with: