Roll external/effcee/ 874b47102..8ce15c424 (2 commits)

google/effcee@874b471...8ce15c4

Created with:
  roll-dep external/effcee --update-readme

Author: GitHub Actions[bot]

DEPS

@@ -5,7 +5,7 @@ vars = {
 
   'abseil_revision': '9c8e8f948bc9bf13388d8ea2afdaadb311a71161',
 
-  'effcee_revision': '874b47102c57a8979c0f154cf8e0eab53c0a0502',
+  'effcee_revision': '8ce15c424e61a94ee27b5be0ec0ed036b158e6e3',
 
   'googletest_revision': '8b8ef3ff0d1f7a1739e0d7c3dd46ab37104fcd9a',