Bazel: fix build with Bazel 0.27.

Change-Id: I3b7f151dc5a33af60aaeb4829b2621fada575cdf
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
Reviewed-on: https://nginx-review.googlesource.com/c/nginx/+/3641
Reviewed-by: Daniel Berkovitch <dbrk@google.com>
diff --git a/.bazelrc b/.bazelrc
new file mode 100644
index 0000000..eee8bcb
--- /dev/null
+++ b/.bazelrc
@@ -0,0 +1,2 @@
+# Use Python 2.x to workaround a bug in pkg_deb().
+build --host_force_python=PY2