Roll external/abseil_cpp/ a3027054a..27a0c7308 (7 commits) (KhronosGr…

…oup#5875)

abseil/abseil-cpp@a302705...27a0c73

Created with:
  roll-dep external/abseil_cpp

Co-authored-by: GitHub Actions[bot] <>

DEPS

@@ -3,7 +3,7 @@ use_relative_paths = True
 vars = {
   'github': 'https://github.com',
 
-  'abseil_revision': 'a3027054aba8c264d2ef9663061f99228fa16645',
+  'abseil_revision': '27a0c7308f04e4560fabe5a7beca837e8f3f2c5b',
 
   'effcee_revision': '2c97e5689ed8d7ab6ae5820f884f03a601ae124b',