Fix yet another checksum

plugins/python-build/share/python-build/pypy3.5-portable-5.8.0

@@ -1,6 +1,6 @@
 case "$(pypy_architecture 2>/dev/null || true)" in
 "linux64" )
-  install_package "pypy3.5-5.8-beta-linux_x86_64-portable" "https://bitbucket.org/squeaky/portable-pypy/downloads/pypy3.5-5.8-beta-linux_x86_64-portable.tar.bz2#337fd7e947a74cb09253f5ff330fb1be471b1d7a64c2d0340ac387920e71bf3c" "pypy" verify_py35 ensurepip
+  install_package "pypy3.5-5.8-beta-linux_x86_64-portable" "https://bitbucket.org/squeaky/portable-pypy/downloads/pypy3.5-5.8-beta-linux_x86_64-portable.tar.bz2#76c2c4b2846e38d2b4846d4b5f9dc0bd9fd7a9b1f04beb92975ae090ad390d75" "pypy" verify_py35 ensurepip
   ;;
 * )
   { echo