[REQ] Require torch<1.13, test with 1.9.0 and 1.12.1

torch 1.13 removed some internal functionality that BackPACK relied on,
see #272.

.github/workflows/test.yaml

@@ -20,7 +20,7 @@ jobs:
     strategy:
       matrix:
         python-version: [3.7, 3.8, 3.9]
-        pytorch-version: [1.9.0, 1.9.1]
+        pytorch-version: [1.9.0, 1.12.1]
     steps:
     - uses: actions/checkout@v1
     - uses: actions/setup-python@v1

backpack/core/derivatives/basederivatives.py

@@ -9,7 +9,7 @@
 from backpack.core.derivatives import shape_check
 
 
-class BaseDerivatives(ABC):
+class BaseDerivatives(ABC):  # noqa: B204
     """First- and second-order partial derivatives of unparameterized module.
 
     Note:

setup.cfg

@@ -34,7 +34,7 @@ setup_requires =
   setuptools_scm
 # Dependencies of the project (semicolon/line-separated):
 install_requires =
-    torch >= 1.9.0, < 2.0.0
+    torch >= 1.9.0, < 1.13.0
     torchvision >= 0.7.0, < 1.0.0
     einops >= 0.3.0, < 1.0.0
 # Require a specific Python version, e.g. Python 2.7 or >= 3.4