python313Packages.mat2: fix broken test (#439328)

pkgs/by-name/ma/mat2/package.nix

···
 {
-  # On Python 3.13, `tests/test_libmat2.py::TestCleaning::test_html` fails with
-  #
-  #     ValueError: The closing tag title doesn't have a corresponding opening one in ./tests/data/clean.html.
-  python312Packages,
+  python3Packages,
 }:
 
-with python312Packages;
+with python3Packages;
 toPythonApplication mat2

pkgs/development/python-modules/mat2/default.nix

···
       url = "https://0xacab.org/jvoisin/mat2/-/commit/473903b70e1b269a6110242a9c098a10c18554e2.patch";
       hash = "sha256-vxxjAFwiTDlcTT3ZlfhOG4rlzBJS+LhLoA++8y2hEok=";
     })
+    (fetchpatch {
+      name = "fix-test-on-python313.patch";
+      url = "https://0xacab.org/jvoisin/mat2/-/commit/f07344444d6d2f04a1f93e2954f4910b194bee0c.patch";
+      hash = "sha256-y756sKkjGO11A2lrRsXAwWgupOZ00u0cDypvkbsiNbY=";
+    })
+    (fetchpatch {
+      name = "fix-test-on-python312.patch";
+      url = "https://0xacab.org/jvoisin/mat2/-/commit/7a8ea224bc327b8ee929379d577c74968ea1c352.patch";
+      hash = "sha256-pPiYhoql5WhjhLKvd6y3OnvxORSbXIGCsZMc7UH3i1Q=";
+    })
     # hardcode paths to some binaries
     (replaceVars ./paths.patch {
       exiftool = lib.getExe exiftool;