python-msgpack: revert to 0.5.6.

srcpkgs/python-msgpack/template

@@ -1,7 +1,8 @@
 # Template file for 'python-msgpack'
 pkgname=python-msgpack
-version=0.6.0
-revision=1
+reverts="0.6.0_1"
+version=0.5.6
+revision=2
 wrksrc="msgpack-${version}"
 build_style=python-module
 pycompile_module="msgpack"
@@ -13,7 +14,7 @@ maintainer="Leah Neukirchen <leah@vuxu.org>"
 license="Apache-2.0"
 homepage="https://github.com/msgpack/msgpack-python"
 distfiles="${PYPI_SITE}/m/msgpack/msgpack-${version}.tar.gz"
-checksum=64abc6bf3a2ac301702f5760f4e6e227d0fd4d84d9014ef9a40faa9d43365259
+checksum=0ee8c8c85aa651be3aa0cd005b5931769eaa658c948ce79428766f1bd46ae2c3
 
 do_check() {
 	python3 -m pytest