Bump PyEnv version to 3.9.7

HWI is compatible with Python 3.9.

Although 3.9.8 has been released, the most recent version of Python shipped
with PyEnv on homebrew (macOS) is 3.9.7

In order to test backwareds compatibility, the version is not changed elsewhere.

Author: Sjors

.python-version

@@ -1 +1 @@
-3.6.12
+3.9.7

contrib/build.Dockerfile

@@ -39,7 +39,7 @@ COPY contrib/reproducible-python.diff /opt/reproducible-python.diff
 ENV PYTHON_CONFIGURE_OPTS="--enable-shared"
 ENV BUILD_DATE="Jan  1 2019"
 ENV BUILD_TIME="00:00:00"
-RUN eval "$(pyenv init --path)" && eval "$(pyenv virtualenv-init -)" && cat /opt/reproducible-python.diff | pyenv install -kp 3.6.12
+RUN eval "$(pyenv init --path)" && eval "$(pyenv virtualenv-init -)" && cat /opt/reproducible-python.diff | pyenv install -kp 3.9.7
 
 RUN dpkg --add-architecture i386
 RUN wget -nc https://dl.winehq.org/wine-builds/winehq.key

contrib/build_bin.sh

@@ -12,7 +12,7 @@ pip install poetry
 poetry install -E qt
 
 # We also need to change the timestamps of all of the base library files
-lib_dir=`pyenv root`/versions/3.6.12/lib/python3.6
+lib_dir=`pyenv root`/versions/3.9.7/lib/python3.9
 TZ=UTC find ${lib_dir} -name '*.py' -type f -execdir touch -t "201901010000.00" '{}' \;
 
 # Make the standalone binary

contrib/build_wine.sh

@@ -3,8 +3,7 @@
 
 set -ex
 
-# No Windows installer for 3.6.12
-PYTHON_VERSION=3.6.8
+PYTHON_VERSION=3.9.7
 
 PYTHON_FOLDER="python3"
 PYHOME="c:/$PYTHON_FOLDER"