opus.recipe: Update to 1.3

https://people.xiph.org/~jm/opus/opus-1.3/

recipes/opus.recipe

@@ -3,11 +3,11 @@
 
 class Recipe(recipe.Recipe):
     name = 'opus'
-    version = '1.2.1'
+    version = '1.3'
     licenses = [License.BSD_like]
     stype = SourceType.TARBALL
     url = 'https://downloads.xiph.org/releases/{0}/{0}-{1}.tar.gz'.format(name, version)
-    tarball_checksum = 'cfafd339ccd9c5ef8d6ab15d7e1a412c054bf4cb4ecbbbcc78c12ef2def70732'
+    tarball_checksum = '4f3d69aefdf2dbaf9825408e452a8a414ffc60494c70633560700398820dc550'
 
     files_libs = ['libopus']
     files_devel = ['include/opus', 'lib/pkgconfig/opus.pc']