Move libbluetooth-dev out of runtime deps

Author: sergioisidoro

Dockerfile-debian.template

@@ -10,7 +10,6 @@ ENV LANG C.UTF-8
 # extra dependencies (over what buildpack-deps already includes)
 RUN apt-get update && apt-get install -y --no-install-recommends \
 # Python 3.4 on Stretch+ needs to use an older version of "libssl-dev" (these lines both get removed for every other combination)
-		libbluetooth-dev \
 		libssl-dev \
 		tk-dev \
 		uuid-dev \
@@ -21,6 +20,7 @@ ENV PYTHON_VERSION %%PLACEHOLDER%%
 
 RUN set -ex \
 	\
+	&& apt-get update && apt-get install -y --no-install-recommends libbluetooth-dev \
 	&& wget -O python.tar.xz "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz" \
 	&& wget -O python.tar.xz.asc "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz.asc" \
 	&& export GNUPGHOME="$(mktemp -d)" \