Pinned pylint version

.github/workflows/build_wheels_macos.yml

@@ -173,7 +173,7 @@ jobs:
 
     - name: Pylint test
       run: |
-        python -m pip install pylint
+        python -m pip install pylint==2.12.2
         python -m pylint ${{ github.workspace }}/tests/pylint.py --extension-pkg-whitelist=cv2 --disable=missing-docstring
 
   test_release_opencv_python:

.github/workflows/build_wheels_macos_m1.yml

@@ -108,7 +108,7 @@ jobs:
 
     - name: Pylint test
       run: |
-        arch -arm64 python${{ matrix.python-version }} -m pip install pylint
+        arch -arm64 python${{ matrix.python-version }} -m pip install pylint==2.12.2
         arch -arm64 python${{ matrix.python-version }} -m pylint ${{ github.workspace }}/tests/pylint.py --extension-pkg-whitelist=cv2 --disable=missing-docstring
 
   test_release_opencv_python:

.github/workflows/build_wheels_windows.yml

@@ -132,7 +132,7 @@ jobs:
 
     - name: Pylint test
       run: |
-        python -m pip install pylint
+        python -m pip install pylint==2.12.2
         python -m pylint ${{ github.workspace }}\tests\pylint.py --extension-pkg-whitelist=cv2 --disable=missing-docstring
       shell: cmd
 

travis_config.sh

@@ -168,7 +168,7 @@ function pylint_test {
 
     echo "Starting Pylint tests..."
 
-    $PYTHON -m pip install pylint
+    $PYTHON -m pip install pylint==2.12.2
     $PYTHON -m pylint /io/tests/pylint.py --extension-pkg-whitelist=cv2 --disable=missing-docstring
 }