Standardize ENV=* formatting in Dockerfiles (#34253)

fix ENV formatting

Dockerfile.openpilot

@@ -1,9 +1,9 @@
 FROM ghcr.io/commaai/openpilot-base:latest
 
-ENV PYTHONUNBUFFERED 1
+ENV PYTHONUNBUFFERED=1
 
-ENV OPENPILOT_PATH /home/batman/openpilot
-ENV PYTHONPATH ${OPENPILOT_PATH}:${PYTHONPATH}
+ENV OPENPILOT_PATH=/home/batman/openpilot
+ENV PYTHONPATH=${OPENPILOT_PATH}:${PYTHONPATH}
 
 RUN mkdir -p ${OPENPILOT_PATH}
 WORKDIR ${OPENPILOT_PATH}

Dockerfile.openpilot_base

@@ -1,6 +1,6 @@
 FROM ubuntu:24.04
 
-ENV PYTHONUNBUFFERED 1
+ENV PYTHONUNBUFFERED=1
 
 ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update && \
@@ -8,9 +8,9 @@ RUN apt-get update && \
     rm -rf /var/lib/apt/lists/*
 
 RUN sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && locale-gen
-ENV LANG en_US.UTF-8
-ENV LANGUAGE en_US:en
-ENV LC_ALL en_US.UTF-8
+ENV LANG=en_US.UTF-8
+ENV LANGUAGE=en_US:en
+ENV LC_ALL=en_US.UTF-8
 
 COPY tools/install_ubuntu_dependencies.sh /tmp/tools/
 RUN /tmp/tools/install_ubuntu_dependencies.sh && \
@@ -55,9 +55,9 @@ RUN mkdir -p /tmp/opencl-driver-intel && \
     cd / && \
     rm -rf /tmp/opencl-driver-intel
 
-ENV NVIDIA_VISIBLE_DEVICES all
-ENV NVIDIA_DRIVER_CAPABILITIES graphics,utility,compute
-ENV QTWEBENGINE_DISABLE_SANDBOX 1
+ENV NVIDIA_VISIBLE_DEVICES=all
+ENV NVIDIA_DRIVER_CAPABILITIES=graphics,utility,compute
+ENV QTWEBENGINE_DISABLE_SANDBOX=1
 
 RUN dbus-uuidgen > /etc/machine-id