Update CI linting configuration and commands

Updated the CI workflow to use a new lint container image and modified Python commands to use python3.

Signed-off-by: Camille Dunning <dunningcamille@gmail.com>

Author: camille-004

.github/workflows/ci.yml

@@ -21,24 +21,19 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     container:
-      image: python:3.10-slim
+      image: ghcr.io/nvidia/cutile-python/lint:2025-12-06-4cb7d16e4c20
     steps:
       - name: Checkout repository
         uses: actions/checkout@v6
 
-      - name: Install lint dependencies
-        env:
-          PIP_BREAK_SYSTEM_PACKAGES: 1
-        run: pip install --no-cache-dir flake8==7.3.0 reuse==5.1.0
-
       - name: Run flake8
         run: flake8
 
       - name: Run cpplint
-        run: python ci/cpplint.py
+        run: python3 ci/cpplint.py
 
       - name: Check license headers (REUSE)
         run: ci/scripts/check_license.sh
 
       - name: Check inline samples are up to date
-        run: python test/tools/inline_samples.py --check
+        run: python3 test/tools/inline_samples.py --check