Merge #3154

3154: [3rd-party] Update gRPC branch r=ricab a=townsend2010

There is a regression seen on macOS in the latest gRPC branch we used for the 1.12 release.  The gRPC branch has been updated to revert the problematic commits.

Fixes #3142



Co-authored-by: Chris Townsend <[email protected]>

Author: bors[bot]

3rd-party/CMakeLists.txt

@@ -3,7 +3,7 @@ set(FETCHCONTENT_QUIET FALSE)
 
 FetchContent_Declare(gRPC
   GIT_REPOSITORY https://github.com/CanonicalLtd/grpc.git
-  GIT_TAG ba8e7f72
+  GIT_TAG e3acf245
   GIT_SHALLOW TRUE
   GIT_SUBMODULES "third_party/abseil-cpp third_party/cares/cares third_party/protobuf third_party/re2 third_party/zlib"
   GIT_SUBMODULES_RECURSE false