Fix linter issues

Signed-off-by: Natalia Wochtman <natalia.wochtman@intel.com>

Author: nwochtma

tests/validation/tests/single/st20p/format/test_format.py

@@ -6,6 +6,7 @@
 import pytest
 from mtl_engine.media_files import yuv_files_422p10le, yuv_files_422rfc10
 
+
 @pytest.mark.nightly
 @pytest.mark.parametrize("file", yuv_files_422p10le.keys())
 def test_422p10le(

tests/validation/tests/single/st20p/fps/test_fps.py

@@ -6,6 +6,7 @@
 import pytest
 from mtl_engine.media_files import yuv_files_422rfc10
 
+
 @pytest.mark.nightly
 @pytest.mark.parametrize(
     "fps",

tests/validation/tests/single/st20p/integrity/test_integrity.py

@@ -19,8 +19,12 @@
     "st20p_file, fps",
     [
         (yuv_files_422rfc10["Penguin_720p"], "p25"),
-        pytest.param(yuv_files_422rfc10["Penguin_1080p"], "p25", marks=pytest.mark.nightly),
-        pytest.param(yuv_files_422p10le["Penguin_720p"], "p25", marks=pytest.mark.nightly),
+        pytest.param(
+            yuv_files_422rfc10["Penguin_1080p"], "p25", marks=pytest.mark.nightly
+        ),
+        pytest.param(
+            yuv_files_422p10le["Penguin_720p"], "p25", marks=pytest.mark.nightly
+        ),
         (yuv_files_422p10le["Penguin_1080p"], "p25"),
     ],
 )

tests/validation/tests/single/st20p/pacing/test_pacing.py

@@ -6,6 +6,7 @@
 import pytest
 from mtl_engine.media_files import yuv_files_422rfc10
 
+
 @pytest.mark.nightly
 @pytest.mark.parametrize("pacing", ["narrow", "wide", "linear"])
 @pytest.mark.parametrize("file", ["Crosswalk_720p", "ParkJoy_1080p", "Pedestrian_4K"])

tests/validation/tests/single/st20p/packing/test_packing.py

@@ -6,6 +6,7 @@
 import pytest
 from mtl_engine.media_files import yuv_files_422rfc10
 
+
 @pytest.mark.nightly
 @pytest.mark.parametrize("packing", ["GPM_SL", "GPM"])
 @pytest.mark.parametrize("file", ["Crosswalk_720p", "ParkJoy_1080p", "Pedestrian_4K"])