build(deps): bump third_party/abseil-cpp from `3735766` to `cc70e83` (#2500)

Bumps [third_party/abseil-cpp](https://github.com/abseil/abseil-cpp) from `3735766` to `cc70e83`.
- [Release notes](https://github.com/abseil/abseil-cpp/releases)
- [Commits](https://github.com/abseil/abseil-cpp/compare/3735766b3bd68522c8f291675df3fddb4bc3c70d...cc70e832b01f6c10ce9461c34f067ad91f8a2698)

---
updated-dependencies:
- dependency-name: third_party/abseil-cpp
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/third_party/abseil-cpp b/third_party/abseil-cpp
index 3735766..cc70e83 160000
--- a/third_party/abseil-cpp
+++ b/third_party/abseil-cpp
@@ -1 +1 @@
-Subproject commit 3735766b3bd68522c8f291675df3fddb4bc3c70d
+Subproject commit cc70e832b01f6c10ce9461c34f067ad91f8a2698