also pin tifffile in test envs

Author: FynnBe

dev/environment-base.yaml

@@ -15,6 +15,6 @@ dependencies:
   - pytorch
   - onnxruntime
   - tensorflow >=1.12,<2.0
-  - tifffile
+  - tifffile <=2022.4.8  # pin fixes Syntax error; see https://github.com/bioimage-io/core-bioimage-io-python/pull/259
   - pip:
     - keras==1.2.2

dev/environment-tf.yaml

@@ -13,5 +13,5 @@ dependencies:
   - python >=3.7,<3.8  # this environment is only available for python 3.7
   - xarray
   - tensorflow >1.14,<2.0
-  - tifffile
+  - tifffile <=2022.4.8  # pin fixes Syntax error; see https://github.com/bioimage-io/core-bioimage-io-python/pull/259
   - keras

dev/environment-torch.yaml

@@ -14,4 +14,5 @@ dependencies:
   - xarray
   - pytorch
   - onnxruntime
-  - tifffile
+  - tifffile <=2022.4.8  # pin fixes Syntax error; see https://github.com/bioimage-io/core-bioimage-io-python/pull/259
+