python3Packages.db-dtypes: unbreak

fixes https://hydra.nixos.org/build/239679666

This fix pulls in fixes from upstream.
Resulted from changes further upstream.

pkgs/development/python-modules/db-dtypes/default.nix

···
 { lib
 , buildPythonPackage
 , fetchFromGitHub
+, fetchpatch
 , numpy
 , packaging
 , pandas
···
     rev = "refs/tags/v${version}";
     hash = "sha256-OAVHx/a4uupVGXSWN2/3uem9/4i+TUkzTX4kp0uLY44=";
   };
+
+  patches = [
+    # on master branch, to be released as 1.1.2
+    (fetchpatch {
+      name = "xfail-tests-that-are-known-to-fail.patch";
+      url = "https://github.com/googleapis/python-db-dtypes-pandas/commit/4a56b766b0ccba900a555167863f1081a76c4c0d.patch";
+      hash = "sha256-ra1d8Vewvwhkr7PBHc3KM6IUCWsHxE+B7UP2duTgjew=";
+    })
+    # on master branch, to be released as 1.1.2
+    (fetchpatch {
+      name = "add-import-and-object-reference-due-to-upstream-changes.patch";
+      url = "https://github.com/googleapis/python-db-dtypes-pandas/commit/8a7b25f3e708df5cd32afcb702fe16130846b165.patch";
+      hash = "sha256-JVbhiOIr5gKMSQpIQ+DgIRqq8V5x5ClQhkQzAmIYqEU=";
+    })
+  ];
 
   propagatedBuildInputs = [
     numpy