Add oxen build mirror to linux static builds

.drone.jsonnet

@@ -377,7 +377,7 @@ local docs_pipeline(name, image, extra_cmds=[], allow_fail=false) = {
                   lto=true,
                   tests=false,
                   oxen_repo=true,
-                  cmake_extra='-DBUILD_STATIC_DEPS=ON -DBUILD_SHARED_LIBS=OFF -DSTATIC_LINK=ON ' +
+                  cmake_extra='-DBUILD_STATIC_DEPS=ON -DBUILD_SHARED_LIBS=OFF -DSTATIC_LINK=ON ' + ci_mirror_opts +
                               '-DCMAKE_C_COMPILER=gcc-8 -DCMAKE_CXX_COMPILER=g++-8 ' +
                               '-DCMAKE_CXX_FLAGS="-march=x86-64 -mtune=haswell" ' +
                               '-DCMAKE_C_FLAGS="-march=x86-64 -mtune=haswell" ' +
@@ -391,7 +391,7 @@ local docs_pipeline(name, image, extra_cmds=[], allow_fail=false) = {
                   docker_base + 'debian-buster/arm32v7',
                   arch='arm64',
                   deps=['g++', 'python3-dev', 'automake', 'libtool'],
-                  cmake_extra='-DBUILD_STATIC_DEPS=ON -DBUILD_SHARED_LIBS=OFF -DSTATIC_LINK=ON ' +
+                  cmake_extra='-DBUILD_STATIC_DEPS=ON -DBUILD_SHARED_LIBS=OFF -DSTATIC_LINK=ON ' + ci_mirror_opts +
                               '-DCMAKE_CXX_FLAGS="-march=armv7-a+fp -Wno-psabi" -DCMAKE_C_FLAGS="-march=armv7-a+fp" ' +
                               '-DNATIVE_BUILD=OFF -DWITH_SYSTEMD=OFF -DWITH_BOOTSTRAP=OFF',
                   extra_cmds=[