Update pypy3.7 to 7.3.6 and add pypy3.8 7.3.6

Author: messense

README.rst

@@ -147,7 +147,7 @@ Image content
 
 All images currently contain:
 
-- CPython 3.6, 3.7, 3.8, 3.9, 3.10, and PyPy 3.7 installed in
+- CPython 3.6, 3.7, 3.8, 3.9, 3.10, and PyPy 3.7, 3.8 installed in
   ``/opt/python/<python tag>-<abi tag>``. The directories are named
   after the PEP 425 tags for each environment --
   e.g. ``/opt/python/cp37-cp37m`` contains a CPython 3.7 build, and

docker/Dockerfile

@@ -143,7 +143,8 @@ RUN manylinux-entrypoint /build_scripts/build-cpython.sh 3.10.0
 FROM build_cpython AS all_python
 COPY build_scripts/install-pypy.sh /build_scripts/install-pypy.sh
 COPY build_scripts/pypy.sha256 /build_scripts/pypy.sha256
-RUN manylinux-entrypoint /build_scripts/install-pypy.sh 3.7 7.3.5
+RUN manylinux-entrypoint /build_scripts/install-pypy.sh 3.7 7.3.6
+RUN manylinux-entrypoint /build_scripts/install-pypy.sh 3.8 7.3.6
 COPY --from=build_cpython36 /opt/_internal /opt/_internal/
 COPY --from=build_cpython37 /opt/_internal /opt/_internal/
 COPY --from=build_cpython38 /opt/_internal /opt/_internal/

docker/build_scripts/pypy.sha256

@@ -1,3 +1,6 @@
-85d83093b3ef5b863f641bc4073d057cc98bb821e16aa9361a5ff4898e70e8ee  pypy3.7-v7.3.5-aarch64.tar.bz2
-3dd8b565203d372829e53945c599296fa961895130342ea13791b17c84ed06c4  pypy3.7-v7.3.5-linux32.tar.bz2
-9000db3e87b54638e55177e68cbeb30a30fe5d17b6be48a9eb43d65b3ebcfc26  pypy3.7-v7.3.5-linux64.tar.bz2
+704d5303096e8a3173e73435f3bb204e31a8bf02ed5ba617a4a0f1e7491edf50  pypy3.8-v7.3.6-aarch64.tar.bz2
+e857a04a76285f0ef5bae84f6f5e9943ca415d499204c531b1c33fe8f015b48d  pypy3.8-v7.3.6-linux32.tar.bz2
+8579ea990e95d2b7e101ef47fd9ebf25a9500d5086e8f708c43f9bae83306ece  pypy3.8-v7.3.6-linux64.tar.bz2
+d446b6987eeaa03d706603863e83d6b99df69232cf1e06d3ee5706add6a84cd6  pypy3.7-v7.3.6-aarch64.tar.bz2
+459e77c845b31fa9367f7b1b1122155f0ba7888b1d4ce4455c35d2111eeeb275  pypy3.7-v7.3.6-linux32.tar.bz2
+c41d07063b1d002a91ad2a0763b4baaca2b306ec635889c2e4826e706cc7f9ca  pypy3.7-v7.3.6-linux64.tar.bz2