chore: Update dockerfile syntax

Dockerfile

@@ -1,10 +1,10 @@
-FROM python:3.13.5-slim-bookworm as base
+FROM python:3.13.5-slim-bookworm AS base
 
 # Setup env
-ENV LANG C.UTF-8
-ENV LC_ALL C.UTF-8
-ENV PYTHONDONTWRITEBYTECODE 1
-ENV PYTHONFAULTHANDLER 1
+ENV LANG=C.UTF-8
+ENV LC_ALL=C.UTF-8
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONFAULTHANDLER=1
 ENV PATH=/home/ftuser/.local/bin:$PATH
 ENV FT_APP_ENV="docker"
 
@@ -21,7 +21,7 @@ RUN mkdir /freqtrade \
 WORKDIR /freqtrade
 
 # Install dependencies
-FROM base as python-deps
+FROM base AS python-deps
 RUN  apt-get update \
   && apt-get -y install build-essential libssl-dev git libffi-dev libgfortran5 pkg-config cmake gcc \
   && apt-get clean \
@@ -30,7 +30,7 @@ RUN  apt-get update \
 # Install TA-lib
 COPY build_helpers/* /tmp/
 RUN cd /tmp && /tmp/install_ta-lib.sh && rm -r /tmp/*ta-lib*
-ENV LD_LIBRARY_PATH /usr/local/lib
+ENV LD_LIBRARY_PATH=/usr/local/lib
 
 # Install dependencies
 COPY --chown=ftuser:ftuser requirements.txt requirements-hyperopt.txt /freqtrade/
@@ -39,9 +39,9 @@ RUN  pip install --user --no-cache-dir "numpy<3.0" \
   && pip install --user --no-cache-dir -r requirements-hyperopt.txt
 
 # Copy dependencies to runtime-image
-FROM base as runtime-image
+FROM base AS runtime-image
 COPY --from=python-deps /usr/local/lib /usr/local/lib
-ENV LD_LIBRARY_PATH /usr/local/lib
+ENV LD_LIBRARY_PATH=/usr/local/lib
 
 COPY --from=python-deps --chown=ftuser:ftuser /home/ftuser/.local /home/ftuser/.local
 

docker/Dockerfile.armhf

@@ -1,10 +1,10 @@
-FROM python:3.11.13-slim-bookworm as base
+FROM python:3.11.13-slim-bookworm AS base
 
 # Setup env
-ENV LANG C.UTF-8
-ENV LC_ALL C.UTF-8
-ENV PYTHONDONTWRITEBYTECODE 1
-ENV PYTHONFAULTHANDLER 1
+ENV LANG=C.UTF-8
+ENV LC_ALL=C.UTF-8
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONFAULTHANDLER=1
 ENV PATH=/home/ftuser/.local/bin:$PATH
 ENV FT_APP_ENV="docker"
 
@@ -22,7 +22,7 @@ RUN mkdir /freqtrade \
 WORKDIR /freqtrade
 
 # Install dependencies
-FROM base as python-deps
+FROM base AS python-deps
 RUN  apt-get update \
   && apt-get -y install build-essential libssl-dev libffi-dev libgfortran5 pkg-config cmake gcc \
   && apt-get clean \
@@ -39,9 +39,9 @@ RUN  pip install --user --no-cache-dir "numpy<3.0" \
   && pip install --user --no-cache-dir -r requirements.txt
 
 # Copy dependencies to runtime-image
-FROM base as runtime-image
+FROM base AS runtime-image
 COPY --from=python-deps /usr/local/lib /usr/local/lib
-ENV LD_LIBRARY_PATH /usr/local/lib
+ENV LD_LIBRARY_PATH=/usr/local/lib
 
 COPY --from=python-deps --chown=ftuser:ftuser /home/ftuser/.local /home/ftuser/.local