roll deps (#5992)

* Roll external/googletest/ 445e9bd8d..a866428a7 (1 commit)

https://github.com/google/googletest/compare/445e9bd8d001...a866428a78ab

Created with:
  roll-dep external/googletest

* Roll external/abseil_cpp/ 9c8d228a7..860dcf1c0 (5 commits)

https://github.com/abseil/abseil-cpp/compare/9c8d228a757b...860dcf1c0c17

Created with:
  roll-dep external/abseil_cpp

---------

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

DEPS

diff --git a/DEPS b/DEPS
index d28a9a0..fd32649 100644
--- a/DEPS
+++ b/DEPS
@@ -3,11 +3,11 @@
 vars = {
   'github': 'https://github.com',
 
-  'abseil_revision': '9c8d228a757b3461755e55872ae0005415fb29ea',
+  'abseil_revision': '860dcf1c0c1714ac1dd940a25f653ea1eee954d7',
 
   'effcee_revision': '12241cbc30f20730b656db7fd5a3fa36cd420843',
 
-  'googletest_revision': '445e9bd8d00180d7574069a7ab19abfae18bc9a2',
+  'googletest_revision': 'a866428a78ab02b7072f96c8de15802ffd451a7f',
 
   # Use protobufs before they gained the dependency on abseil
   'protobuf_revision': 'v21.12',