BAZEL_INTERNAL_INVOCATION_ID is deprecated

tools/internal_ci/linux/grpc_bazel_on_foundry_base.sh

@@ -35,14 +35,15 @@ cd $(dirname $0)/../../..
 source tools/internal_ci/helper_scripts/prepare_build_linux_rc
 
 # to get "bazel" link for kokoro build, we need to generate
-# invocation UUID, set an env var for bazel to pick it up
+# invocation UUID, set a flag for bazel to use it
 # and upload "bazel_invocation_ids" file as artifact.
-export BAZEL_INTERNAL_INVOCATION_ID="$(uuidgen)"
-echo "${BAZEL_INTERNAL_INVOCATION_ID}" >"${KOKORO_ARTIFACTS_DIR}/bazel_invocation_ids"
+BAZEL_INVOCATION_ID="$(uuidgen)"
+echo "${BAZEL_INVOCATION_ID}" >"${KOKORO_ARTIFACTS_DIR}/bazel_invocation_ids"
 
 bazel \
   --bazelrc=tools/remote_build/kokoro.bazelrc \
   test \
+  --invocation_id="${BAZEL_INVOCATION_ID}" \
   $@ \
   -- //test/... || FAILED="true"