setup: bump dclab to 0.71.6

Author: paulmueller

CHANGELOG

@@ -2,6 +2,8 @@
  - enh: fetch QuickView image and trace data in `EventGetterThread`
  - enh: busy indicator in QuickView when event data is fetched in the background
  - ref: new `qv_event_getter` and `qv_image_vis` submodules
+ - setup: bump dclab to 0.71.6 (disable file locking, improved DCOR support,
+   IndexError during plotting)
 2.26.2
  - reg: filters not applied in final plots since 2.25.1
  - fix: prevent `pipeline.lock` deadlocks via Qt signal cluttering

pyproject.toml

@@ -30,7 +30,7 @@ classifiers = [
 ]
 license = "GPL-3.0-or-later"
 dependencies = [
-    "dclab[dcor,export,http,s3]>=0.71.2",
+    "dclab[dcor,export,http,s3]>=0.71.6",
     "h5py>=2.8.0",
     "numpy>=1.21",  # CVE-2021-33430
     "pygments",