CI: Bump actions/setup-python from 5.6.0 to 6.0.0

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 5.6.0 to 6.0.0.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@a26af69...e797f83)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/extension-ai-analysis.yml

@@ -24,7 +24,7 @@ jobs:
           fetch-depth: 0 # Fetch full history for git diff
 
       - name: Setup Python
-        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
         with:
           python-version: "3.12"
           cache: "pip"

.github/workflows/extension-validation.yml

@@ -23,7 +23,7 @@ jobs:
         with:
           fetch-depth: 0 # Fetch full history for git diff
 
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
         with:
           python-version: "3.12"
           cache: "pip"

.github/workflows/lint.yml

@@ -17,7 +17,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
         with:
           python-version: "3.12"
       - uses: pre-commit/action@2c7b3805fd2a0fd8c1884dcaebf91fc102a13ecd # v3.0.1