ci: Download doxygen from Github

Replace the sourceforge URL with Github.

Signed-off-by: Pieter De Gendt <[email protected]>

Author: pdgendt

Dockerfile.ci

@@ -56,7 +56,7 @@ RUN if [ "${HOSTTYPE}" = "x86_64" ]; then \
 # Install Doxygen (x86 only)
 # NOTE: Pre-built Doxygen binaries are only available for x86_64 host.
 RUN if [ "${HOSTTYPE}" = "x86_64" ]; then \
-	wget ${WGET_ARGS} https://downloads.sourceforge.net/project/doxygen/rel-${DOXYGEN_VERSION}/doxygen-${DOXYGEN_VERSION}.linux.bin.tar.gz && \
+	wget ${WGET_ARGS} "https://github.com/doxygen/doxygen/releases/download/Release_${DOXYGEN_VERSION//./_}/doxygen-${DOXYGEN_VERSION}.linux.bin.tar.gz" && \
 	tar xf doxygen-${DOXYGEN_VERSION}.linux.bin.tar.gz -C /opt && \
 	ln -s /opt/doxygen-${DOXYGEN_VERSION}/bin/doxygen /usr/local/bin && \
 	rm doxygen-${DOXYGEN_VERSION}.linux.bin.tar.gz \