update third_party/protobuf to v3.14.0

bazel/grpc_deps.bzl

@@ -169,11 +169,11 @@ def grpc_deps():
     if "com_google_protobuf" not in native.existing_rules():
         http_archive(
             name = "com_google_protobuf",
-            sha256 = "e589e39ef46fb2b3b476b3ca355bd324e5984cbdfac19f0e1625f0042e99c276",
-            strip_prefix = "protobuf-fde7cf7358ec7cd69e8db9be4f1fa6a5c431386a",
+            sha256 = "04c5e84492093469a7e6342114df3cfd1281e4a90b0d18428ac6c297b87c03e3",
+            strip_prefix = "protobuf-2514f0bd7da7e2af1bed4c5d1b84f031c4d12c10",
             urls = [
-                "https://storage.googleapis.com/grpc-bazel-mirror/github.com/google/protobuf/archive/fde7cf7358ec7cd69e8db9be4f1fa6a5c431386a.tar.gz",
-                "https://github.com/google/protobuf/archive/fde7cf7358ec7cd69e8db9be4f1fa6a5c431386a.tar.gz",
+                "https://storage.googleapis.com/grpc-bazel-mirror/github.com/google/protobuf/archive/2514f0bd7da7e2af1bed4c5d1b84f031c4d12c10.tar.gz",
+                "https://github.com/google/protobuf/archive/2514f0bd7da7e2af1bed4c5d1b84f031c4d12c10.tar.gz",
             ],
         )
 

third_party/protobuf

@@ -1 +1 @@
-Subproject commit fde7cf7358ec7cd69e8db9be4f1fa6a5c431386a
+Subproject commit 2514f0bd7da7e2af1bed4c5d1b84f031c4d12c10

tools/run_tests/sanity/check_submodules.sh

@@ -35,7 +35,7 @@ cat << EOF | awk '{ print $1 }' | sort > "$want_submodules"
  80ed4d0bbf65d57cc267dfc63bd2584557f11f9b third_party/googleapis (common-protos-1_3_1-915-g80ed4d0bb)
  c9ccac7cb7345901884aabf5d1a786cfa6e2f397 third_party/googletest (6e2f397)
  15ae750151ac9341e5945eb38f8982d59fb99201 third_party/libuv (v1.34.0)
- fde7cf7358ec7cd69e8db9be4f1fa6a5c431386a third_party/protobuf (v3.7.0-rc.2-1277-gfde7cf735)
+ 2514f0bd7da7e2af1bed4c5d1b84f031c4d12c10 third_party/protobuf (v3.7.0-rc.2-1277-gfde7cf735)
  e020f3aef8ae6cb59f384bfbaaed72e71e88ccd6 third_party/protoc-gen-validate (v0.4.1)
  aecba11114cf1fac5497aeb844b6966106de3eb6 third_party/re2 (heads/master)
  1f710aca26a95876e64973a6d2a927a9f4b20ca4 third_party/udpa (heads/master)