Added GStreamer related pytest to nightly scope

Signed-off-by: Wilczynski, Andrzej <andrzej.wilczynski@intel.com>

Author: awilczyns

tests/validation/tests/single/gstreamer/anc_format/test_anc_format.py

@@ -9,6 +9,7 @@
 TMP_OUTPUT_FILE = "/tmp/output_anc.txt"
 
 
+@pytest.mark.nightly
 @pytest.mark.parametrize("fps", [24, 25, 30, 50, 60, 100, 120])
 @pytest.mark.parametrize("file_size_kb", [10, 100])
 @pytest.mark.parametrize("framebuff", [3])
@@ -73,6 +74,7 @@ def test_st40p_fps_size(
         media_create.remove_file(TMP_OUTPUT_FILE, host=host)
 
 
+@pytest.mark.nightly
 @pytest.mark.parametrize("fps", [60])
 @pytest.mark.parametrize("file_size_kb", [100])
 @pytest.mark.parametrize("framebuff", [1, 3, 6, 12])
@@ -140,6 +142,7 @@ def test_st40p_framebuff(
         media_create.remove_file(TMP_OUTPUT_FILE, host=host)
 
 
+@pytest.mark.nightly
 @pytest.mark.parametrize("fps", [24, 25, 30, 50, 60, 100, 120])
 @pytest.mark.parametrize("framebuff", [1, 3, 6, 12])
 def test_st40p_format_8331(

tests/validation/tests/single/gstreamer/audio_format/test_audio_format.py

@@ -8,6 +8,7 @@
 from mtl_engine import GstreamerApp
 
 
+@pytest.mark.nightly
 @pytest.mark.parametrize("audio_format", ["S8", "S16BE", "S24BE"])
 @pytest.mark.parametrize("audio_channel", [1, 2, 6, 8])
 @pytest.mark.parametrize("audio_rate", [44100, 48000, 96000])

tests/validation/tests/single/gstreamer/video_format/test_video_format.py

@@ -9,6 +9,7 @@
 from mtl_engine.media_files import gstreamer_formats
 
 
+@pytest.mark.nightly
 @pytest.mark.parametrize("file", gstreamer_formats.keys())
 def test_video_format(
     hosts,