Update Dockerfile 📝

The current `opencore-amr` and `lame` URL's SSL certificate seems to have expired which breaks the build when trying to `curl` them. Swap them for different ones.

> Tested on macOS 10.14.6 with Docker 2.1.0.1

Author: juniorxsound

Dockerfile

@@ -80,7 +80,7 @@ RUN \
         DIR=/tmp/opencore-amr && \
         mkdir -p ${DIR} && \
         cd ${DIR} && \
-        curl -sL https://kent.dl.sourceforge.net/project/opencore-amr/opencore-amr/opencore-amr-${OPENCOREAMR_VERSION}.tar.gz | \
+        curl -sL https://sourceforge.net/projects/opencore-amr/files/opencore-amr/opencore-amr-${OPENCOREAMR_VERSION}.tar.gz | \
         tar -zx --strip-components=1 && \
         ./configure --prefix="${PREFIX}" --enable-shared  && \
         make && \
@@ -176,7 +176,7 @@ RUN \
         DIR=/tmp/lame && \
         mkdir -p ${DIR} && \
         cd ${DIR} && \
-        curl -sL https://kent.dl.sourceforge.net/project/lame/lame/$(echo ${LAME_VERSION} | sed -e 's/[^0-9]*\([0-9]*\)[.]\([0-9]*\)[.]\([0-9]*\)\([0-9A-Za-z-]*\)/\1.\2/')/lame-${LAME_VERSION}.tar.gz | \
+        curl -sL https://sourceforge.net/projects/lame/files/lame/$(echo ${LAME_VERSION} | sed -e 's/[^0-9]*\([0-9]*\)[.]\([0-9]*\)[.]\([0-9]*\)\([0-9A-Za-z-]*\)/\1.\2/')/lame-${LAME_VERSION}.tar.gz | \
         tar -zx --strip-components=1 && \
         ./configure --prefix="${PREFIX}" --bindir="${PREFIX}/bin" --enable-shared --enable-nasm --enable-pic --disable-frontend && \
         make && \