Pick up current bazel-build-tools tag (#14734)

Signed-off-by: William A Rowe Jr <wrowe@vmware.com>

.bazelrc

@@ -246,7 +246,7 @@ build:remote-clang-cl --config=rbe-toolchain-clang-cl
 
 # Docker sandbox
 # NOTE: Update this from https://github.com/envoyproxy/envoy-build-tools/blob/main/toolchains/rbe_toolchains_config.bzl#L8
-build:docker-sandbox --experimental_docker_image=envoyproxy/envoy-build-ubuntu:11efa5680d987fff33fde4af3cc5ece105015d04
+build:docker-sandbox --experimental_docker_image=envoyproxy/envoy-build-ubuntu:c8fa4235714003ba0896287ee2f91cae06e0e407
 build:docker-sandbox --spawn_strategy=docker
 build:docker-sandbox --strategy=Javac=docker
 build:docker-sandbox --strategy=Closure=docker

.devcontainer/Dockerfile

@@ -1,4 +1,4 @@
-FROM gcr.io/envoy-ci/envoy-build:11efa5680d987fff33fde4af3cc5ece105015d04
+FROM gcr.io/envoy-ci/envoy-build:c8fa4235714003ba0896287ee2f91cae06e0e407
 
 ARG USERNAME=vscode
 ARG USER_UID=501

examples/wasm-cc/docker-compose-wasm.yaml

@@ -3,7 +3,7 @@ version: "3.7"
 services:
 
   wasm_compile_update:
-    image: envoyproxy/envoy-build-ubuntu:11efa5680d987fff33fde4af3cc5ece105015d04
+    image: envoyproxy/envoy-build-ubuntu:c8fa4235714003ba0896287ee2f91cae06e0e407
     command: |
       bash -c "bazel build //examples/wasm-cc:envoy_filter_http_wasm_updated_example.wasm \
                 && cp -a bazel-bin/examples/wasm-cc/* /build"
@@ -13,7 +13,7 @@ services:
       - ./lib:/build
 
   wasm_compile:
-    image: envoyproxy/envoy-build-ubuntu:11efa5680d987fff33fde4af3cc5ece105015d04
+    image: envoyproxy/envoy-build-ubuntu:c8fa4235714003ba0896287ee2f91cae06e0e407
     command: |
       bash -c "bazel build //examples/wasm-cc:envoy_filter_http_wasm_example.wasm \
                 && cp -a bazel-bin/examples/wasm-cc/* /build"