Fix possible permission issues

Dockerfile

@@ -471,9 +471,9 @@ RUN if [ "$(dpkg --print-architecture)" = "amd64" ]; then \
         q4wine \
         playonlinux && \
     LUTRIS_VERSION="$(curl -fsSL "https://api.github.com/repos/lutris/lutris/releases/latest" | jq -r '.tag_name' | sed 's/[^0-9\.\-]*//g')" && \
-    curl -o lutris.deb -fsSL "https://github.com/lutris/lutris/releases/download/v${LUTRIS_VERSION}/lutris_${LUTRIS_VERSION}_all.deb" && apt-get install --no-install-recommends -y ./lutris.deb && rm -f lutris.deb && \
+    cd /tmp && curl -o lutris.deb -fsSL "https://github.com/lutris/lutris/releases/download/v${LUTRIS_VERSION}/lutris_${LUTRIS_VERSION}_all.deb" && apt-get install --no-install-recommends -y ./lutris.deb && rm -f lutris.deb && \
     HEROIC_VERSION="$(curl -fsSL "https://api.github.com/repos/Heroic-Games-Launcher/HeroicGamesLauncher/releases/latest" | jq -r '.tag_name' | sed 's/[^0-9\.\-]*//g')" && \
-    curl -o heroic_launcher.deb -fsSL "https://github.com/Heroic-Games-Launcher/HeroicGamesLauncher/releases/download/v${HEROIC_VERSION}/heroic_${HEROIC_VERSION}_$(dpkg --print-architecture).deb" && apt-get install --no-install-recommends -y ./heroic_launcher.deb && rm -f heroic_launcher.deb && \
+    cd /tmp && curl -o heroic_launcher.deb -fsSL "https://github.com/Heroic-Games-Launcher/HeroicGamesLauncher/releases/download/v${HEROIC_VERSION}/heroic_${HEROIC_VERSION}_$(dpkg --print-architecture).deb" && apt-get install --no-install-recommends -y ./heroic_launcher.deb && rm -f heroic_launcher.deb && \
     apt-get clean && rm -rf /var/lib/apt/lists/* /var/cache/debconf/* /var/log/* /tmp/* /var/tmp/* && \
     curl -o /usr/bin/winetricks -fsSL "https://raw.githubusercontent.com/Winetricks/winetricks/master/src/winetricks" && \
     chmod -f 755 /usr/bin/winetricks && \