Use shallow clone for pyenv

Signed-off-by: Stephen Finucane <stephen@that.guru>

Author: stephenfin

Dockerfile

@@ -28,9 +28,9 @@ RUN apt-get update --quiet && \
         zlib1g && \
     rm -rf /var/lib/apt/lists/*
 
-RUN curl -L https://github.com/pyenv/pyenv-installer/raw/master/bin/pyenv-installer | bash && \
-    git clone https://github.com/momo-lab/xxenv-latest $PYENV_ROOT/plugins/xxenv-latest && \
-    pyenv update
+RUN git clone --depth 1 https://github.com/pyenv/pyenv.git $PYENV_ROOT && \
+    git clone --depth 1 https://github.com/momo-lab/xxenv-latest $PYENV_ROOT/plugins/xxenv-latest && \
+    rm -rf $PYENV_ROOT/.git $PYENV_ROOT/plugins/xxenv-latest/.git
 
 # ---
 
@@ -50,12 +50,12 @@ RUN apt-get update --quiet && \
         zlib1g-dev && \
     rm -rf /var/lib/apt/lists/*
 
+ENV PYTHON_CONFIGURE_OPTS="--disable-test-modules"
+
 RUN pyenv install 3.11 && \
     pyenv install 3.12 && \
     pyenv install 3.13 && \
     pyenv install 3.14 && \
-    pyenv global $(pyenv versions --bare | tac) && \
-    pyenv versions && \
     find ${PYENV_ROOT}/versions -depth \
         \( \
             \( -type d -a \( -name test -o -name tests -o -name idle_test \) \) \