Update to dulwich 1.0.0 (python-poetry#10701)

From the release notes:

> From here on, Dulwich will not break backwards compatibility until 2.0

Author: hroncok

poetry.lock

@@ -8,7 +8,7 @@ dependencies = [
     "build (>=1.2.1,<2.0.0)",
     "cachecontrol[filecache] (>=0.14.0,<0.15.0)",
     "cleo (>=2.1.0,<3.0.0)",
-    "dulwich (>=0.25.0,<0.26.0)",
+    "dulwich (>=0.25.0,<2)",
     "fastjsonschema (>=2.18.0,<3.0.0)",
     "installer (>=0.7.0,<0.8.0)",
     "keyring (>=25.1.0,<26.0.0)",