[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

pl_bolts/models/gans/pix2pix/components.py

@@ -36,7 +36,7 @@ def __init__(
         kernel: int = 4,
         strides: int = 2,
         padding: int = 1,
-        batchnorm: bool = True
+        batchnorm: bool = True,
     ) -> None:
         super().__init__()
         layers = [nn.Conv2d(in_channels, out_channels, kernel, strides, padding)]