Pin gdown version to v4.6.3 (#7384)

Workaround for #7382 #7383

### Description

Based on the comment
[here](wkentaro/gdown#291 (comment)),
pin the gdown version as a workaround. Will review this one once gdown
has some update internal.

### Types of changes
<!--- Put an `x` in all the boxes that apply, and remove the not
applicable items -->
- [x] Non-breaking change (fix or new feature that would not break
existing functionality).
- [ ] Breaking change (fix or new feature that would cause existing
functionality to change).
- [ ] New tests added to cover the changes.
- [ ] Integration tests passed locally by running `./runtests.sh -f -u
--net --coverage`.
- [ ] Quick tests passed locally by running `./runtests.sh --quick
--unittests --disttests`.
- [ ] In-line docstrings updated.
- [ ] Documentation updated, tested `make html` command in the `docs/`
folder.

Signed-off-by: YunLiu <55491388+KumoLiu@users.noreply.github.com>

monai/apps/utils.py

@@ -30,7 +30,7 @@
 from monai.config.type_definitions import PathLike
 from monai.utils import look_up_option, min_version, optional_import
 
-gdown, has_gdown = optional_import("gdown", "4.4")
+gdown, has_gdown = optional_import("gdown", "4.6.3")
 
 if TYPE_CHECKING:
  from tqdm import tqdm

requirements-dev.txt

@@ -1,7 +1,7 @@
 # Full requirements for developments
 -r requirements-min.txt
 pytorch-ignite==0.4.11
-gdown>=4.4.0
+gdown>=4.4.0, <=4.6.3
 scipy>=1.7.1
 itk>=5.2
 nibabel

setup.cfg

@@ -52,7 +52,7 @@ all =
  scipy>=1.7.1
  pillow
  tensorboard
- gdown>=4.4.0
+ gdown==4.6.3
  pytorch-ignite==0.4.11
  torchvision
  itk>=5.2
@@ -97,7 +97,7 @@ pillow =
 tensorboard =
  tensorboard
 gdown =
- gdown>=4.4.0
+ gdown==4.6.3
 ignite =
  pytorch-ignite==0.4.11
 torchvision =