amend expected video duration after ffmpeg 7.1 upgrade

Author: rob93c

src/test/java/com/github/stickerifier/stickerify/media/MediaHelperTest.java

@@ -188,7 +188,7 @@ void convertShortAndLowFpsVideo() throws Exception {
 		var webmVideo = loadResource("short_low_fps.webm");
 		var result = MediaHelper.convert(webmVideo);
 
-		assertVideoConsistency(result, 512, 288, 10F, 1_000L);
+		assertVideoConsistency(result, 512, 288, 10F, 900L);
 	}
 
 	@Test
@@ -204,23 +204,23 @@ void convertVerticalWebmVideo() throws Exception {
 		var webmVideo = loadResource("vertical_video_sticker.webm");
 		var result = MediaHelper.convert(webmVideo);
 
-		assertVideoConsistency(result, 288, 512, 30F, 2_000L);
+		assertVideoConsistency(result, 288, 512, 30F, 1_970L);
 	}
 
 	@Test
 	void convertGifVideo() throws Exception {
 		var gifVideo = loadResource("valid.gif");
 		var result = MediaHelper.convert(gifVideo);
 
-		assertVideoConsistency(result, 512, 274, 10F, 1_000L);
+		assertVideoConsistency(result, 512, 274, 10F, 900L);
 	}
 
 	@Test
 	void convertAviVideo() throws Exception {
 		var aviVideo = loadResource("valid.avi");
 		var result = MediaHelper.convert(aviVideo);
 
-		assertVideoConsistency(result, 512, 512, 30F, 3_000L);
+		assertVideoConsistency(result, 512, 512, 30F, 2_970L);
 	}
 
 	@Test