Automator: update common-files@master in istio/tools@master (#3270)

Author: istio-testing

.devcontainer/devcontainer.json

@@ -1,6 +1,6 @@
 {
   "name": "istio build-tools",
-  "image": "gcr.io/istio-testing/build-tools:master-17c2b235c898c60c83dccb2303cdd50067a6e58d",
+  "image": "gcr.io/istio-testing/build-tools:master-8946051100dffaf26dd813f2ce0bbc86c15f1086",
   "privileged": true,
   "remoteEnv": {
     "USE_GKE_GCLOUD_AUTH_PLUGIN": "True",

common/.commonfiles.sha

@@ -1 +1 @@
-e91f75f34a480702dffd492883c8dba9bbf7a9d7
+bb929efe369f9fa29f08fc0efff7b783fb70ae31

common/scripts/setup_env.sh

@@ -49,6 +49,8 @@ elif [[ ${LOCAL_ARCH} == s390x ]]; then
     TARGET_ARCH=s390x
 elif [[ ${LOCAL_ARCH} == ppc64le ]]; then
     TARGET_ARCH=ppc64le
+elif [[ ${LOCAL_ARCH} == riscv64 ]]; then
+    TARGET_ARCH=riscv64
 else
     echo "This system's architecture, ${LOCAL_ARCH}, isn't supported"
     exit 1
@@ -75,7 +77,7 @@ fi
 TOOLS_REGISTRY_PROVIDER=${TOOLS_REGISTRY_PROVIDER:-gcr.io}
 PROJECT_ID=${PROJECT_ID:-istio-testing}
 if [[ "${IMAGE_VERSION:-}" == "" ]]; then
-  IMAGE_VERSION=master-17c2b235c898c60c83dccb2303cdd50067a6e58d
+  IMAGE_VERSION=master-8946051100dffaf26dd813f2ce0bbc86c15f1086
 fi
 if [[ "${IMAGE_NAME:-}" == "" ]]; then
   IMAGE_NAME=build-tools