Update to PyPy 7.3.2

Author: YannickJadoul

README.rst

@@ -14,9 +14,11 @@ the only supported platform is ``x86_64``.
 At the moment of writing, this image provide the following versions of
 PyPy:
 
-- PyPy2.7 7.3.1
+- PyPy2.7 7.3.2
 
-- PyPy3.6 7.3.1
+- PyPy3.6 7.3.2
+
+- PyPy3.7 7.3.2
 
 - PyPy2.7 7.2.0
 
@@ -41,26 +43,28 @@ also symlinked to ``/opt/python``. Moreover, each installation of PyPy
 contains also a ``python`` symlink.
 
 All the following commands are equivalent and run the PyPy 2.7, version
-7.3.1. You can use whatever fits best in your build system:
+7.3.2. You can use whatever fits best in your build system:
 
-- ``/opt/pypy/pypy2.7-7.3.1/bin/pypy``
+- ``/opt/pypy/pypy2.7-7.3.2/bin/pypy``
 
-- ``/opt/pypy/pypy2.7-7.3.1/bin/python``
+- ``/opt/pypy/pypy2.7-7.3.2/bin/python``
 
 - ``/opt/python/pp27-pypy_73/bin/pypy``
 
 - ``/opt/python/pp27-pypy_73/bin/python``
 
-Similarly, these are the commands to run PyPy 3.6, version 7.3.1:
+Similarly, these are the commands to run PyPy 3.6, version 7.3.2:
 
-- ``/opt/pypy/pypy3.6-7.3.1/bin/pypy``
+- ``/opt/pypy/pypy3.6-7.3.2/bin/pypy``
 
-- ``/opt/pypy/pypy3.6-7.3.1/bin/python``
+- ``/opt/pypy/pypy3.6-7.3.2/bin/python``
 
 - ``/opt/python/pp36-pypy36_pp73/bin/pypy``
 
 - ``/opt/python/pp36-pypy36_pp73/bin/python``
 
+The paths for PyPy 3.7 are completely analogous to the ones for 3.6.
+
 
 PEP 425 Compatibility tags
 ---------------------------

docker/build_scripts_pypy/prefetch_pypy.sh

@@ -17,6 +17,7 @@ cd "$SOURCES"
 fetch_source pypy-7.2.0-linux_x86_64-portable.tar.bz2 "$SQUEAKY_GITHUB_URL/pypy-7.2.0"
 fetch_source pypy3.6-7.2.0-linux_x86_64-portable.tar.bz2 "$SQUEAKY_GITHUB_URL/pypy3.6-7.2.0"
 
-# pypy 7.3.1
-fetch_source pypy2.7-v7.3.1-linux64.tar.bz2 "$URL"
-fetch_source pypy3.6-v7.3.1-linux64.tar.bz2 "$URL"
+# pypy 7.3.2
+fetch_source pypy2.7-v7.3.2-linux64.tar.bz2 "$URL"
+fetch_source pypy3.6-v7.3.2-linux64.tar.bz2 "$URL"
+fetch_source pypy3.7-v7.3.2-linux64.tar.bz2 "$URL"