Merge RUN instructions

Docker "best practices" for creating less layers

Author: filipopo

Dockerfile

@@ -9,8 +9,8 @@ FROM public.ecr.aws/lambda/python@sha256:7c0b6f5a3937f34b2ff0553898dce1a8711c3da
 RUN dnf install -y atk cups-libs gtk3 libXcomposite alsa-lib \
     libXcursor libXdamage libXext libXi libXrandr libXScrnSaver \
     libXtst pango at-spi2-atk libXt xorg-x11-server-Xvfb \
-    xorg-x11-xauth dbus-glib dbus-glib-devel nss mesa-libgbm
-RUN pip install selenium==4.34.2
+    xorg-x11-xauth dbus-glib dbus-glib-devel nss mesa-libgbm && \
+    pip install selenium==4.34.2
 COPY --from=build /opt/chrome-linux64 /opt/chrome
 COPY --from=build /opt/chromedriver-linux64 /opt/
 COPY main.py ./