ci: upgrade astyle tool (#4776)

Install from source to use the latest version

examples/styles/lv_example_style_14.c

@@ -1,7 +1,6 @@
 #include "../lv_examples.h"
 #if LV_BUILD_EXAMPLES && LV_USE_IMG
 
-
 static lv_style_t style_btn;
 
 /*Will be called when the styles of the base theme are already added
@@ -36,8 +35,6 @@ static void new_theme_init_and_set(void)
     lv_display_set_theme(NULL, &th_new);
 }
 
-
-
 /**
  * Extending the current theme
  */

examples/styles/lv_example_style_15.c

@@ -1,8 +1,6 @@
 #include "../lv_examples.h"
 #if LV_BUILD_EXAMPLES && LV_USE_BTN && LV_USE_LABEL
 
-
-
 /**
  * Opacity and Transformations
  */