Update Envoy to 4222f18 (Mar 20th 2023) (#999)

No changes to `.bazelrc`, `.bazelversion`, `ci/run_envoy_docker.sh`, `tools/gen_compilation_database.py`.
Synced changes from `tools/code_format/config.yaml`.

Signed-off-by: jiajunye <jiajunye@google.com>

Author: jiajunye

bazel/repositories.bzl

@@ -1,7 +1,7 @@
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
-ENVOY_COMMIT = "de3ae4a6e996ef7e6356c62b44990a6cf01e3a1c"
-ENVOY_SHA = "798d463664e1a31a963688647d90f07f25bfbae4aaaca1ade03348aed6edb9d5"
+ENVOY_COMMIT = "4222f18fe3eb34a9530d3b1d916bcb8f18dc627d"
+ENVOY_SHA = "25f7f65b3214e5544a3bdb8688e7ccb98388e1c34e8aef1faa5858af13879d8a"
 
 HDR_HISTOGRAM_C_VERSION = "0.11.2"  # October 12th, 2020
 HDR_HISTOGRAM_C_SHA = "637f28b5f64de2e268131e4e34e6eef0b91cf5ff99167db447d9b2825eae6bad"

tools/code_format/config.yaml

@@ -98,7 +98,6 @@ paths:
     - source/common/upstream/cds_api_helper.cc
     - source/common/upstream/thread_aware_lb_impl.cc
     - source/common/upstream/load_balancer_impl.cc
-    - source/common/upstream/health_checker_impl.cc
     - source/common/upstream/cluster_manager_impl.cc
     - source/common/upstream/od_cds_api_impl.cc
     - source/common/upstream/cds_api_impl.cc
@@ -124,7 +123,6 @@ paths:
     - source/common/stats/tag_producer_impl.cc
     - source/common/http/http2/codec_impl.cc
     - source/common/http/filter_chain_helper.cc
-    - source/common/http/request_id_extension_impl.cc
     - source/common/http/utility.cc
     - source/common/http/hash_policy.cc
     - source/common/http/utility.h
@@ -250,9 +248,7 @@ paths:
   # Files that are allowed to use try without main thread assertion.
   raw_try:
     include:
-    - source/common/common/regex.cc
     - source/common/common/thread.h
-    - source/common/network/utility.cc
 
   # Files matching these exact names can reference real-world time. These include the class
   # definitions for real-world time, the construction of them in main(), and perf annotation.