Bump cluster-tools from 1.48 to 1.49 (#195)

Bumps [cluster-tools](https://github.com/scalableminds/cluster_tools) from 1.48 to 1.49.
- [Release notes](https://github.com/scalableminds/cluster_tools/releases)
- [Commits](scalableminds/cluster_tools@v1.48...v1.49)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

poetry.lock

@@ -13,7 +13,7 @@ pillow = "^6.2.1"
 pyyaml = "^5.2"
 wkw = "0.1.2"
 requests = "^2.22.0"
-cluster_tools = "1.48"
+cluster_tools = "1.49"
 natsort = "^6.2.0"
 psutil = "^5.6.7"
 nibabel = "^2.5.1"