Discard changes to .github/workflows/classic-python-checks.yml

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 5 to 6.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](https://github.com/actions/setup-python/compare/v5...v6)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/claude-dependabot.yml

@@ -36,7 +36,7 @@ jobs:
 
       # Backend Python/Poetry setup (mirrors platform-backend-ci.yml)
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.11"  # Use standard version matching CI
 

.github/workflows/claude.yml

@@ -52,7 +52,7 @@ jobs:
 
       # Backend Python/Poetry setup (mirrors platform-backend-ci.yml)
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.11"  # Use standard version matching CI
 

.github/workflows/copilot-setup-steps.yml

@@ -34,7 +34,7 @@ jobs:
 
       # Backend Python/Poetry setup (mirrors platform-backend-ci.yml)
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.11"  # Use standard version matching CI
 

.github/workflows/platform-autogpt-deploy-dev.yaml

@@ -30,7 +30,7 @@ jobs:
           ref: ${{ github.event.inputs.git_ref || github.ref_name }}
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.11'
 

.github/workflows/platform-autogpt-deploy-prod.yml

@@ -22,7 +22,7 @@ jobs:
           ref: ${{ github.ref_name || 'master' }}
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.11'
 

.github/workflows/platform-backend-ci.yml

@@ -74,7 +74,7 @@ jobs:
           submodules: true
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
 

.github/workflows/repo-workflow-checker.yml

@@ -15,7 +15,7 @@ jobs:
         # with:
           # fetch-depth: 0
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.10"
       - name: Install dependencies