Use configs for container v0.2.0 bazel v0.7.0

PiperOrigin-RevId: 173548492
diff --git a/BUILD b/BUILD
index 18a338d..896670e 100644
--- a/BUILD
+++ b/BUILD
@@ -106,6 +106,6 @@
 # Will be removed once toolchain fetching is supported.
 filegroup(
     name = "dummy_toolchain_reference",
-    srcs = ["@bazel_toolchains//configs/debian8_clang/0.1.0/bazel_0.6.0:empty"],
+    srcs = ["@bazel_toolchains//configs/debian8_clang/0.2.0/bazel_0.7.0:empty"],
     visibility = ["//visibility:public"],
 )