lower numpy required version

.pre-commit-config.yaml

@@ -8,4 +8,5 @@ repos:
 -   repo: https://github.com/psf/black
     rev: 22.1.0
     hooks:
-    -   id: black
+      - id: black
+        name: black8 formatting

pyproject.toml

@@ -32,7 +32,7 @@ issues = "http://mbees.med.uni-augsburg.de/gitlab/mbees/icartt_pypackage/issues"
 
 [tool.poetry.dependencies]
 python = ">=3.8,<4"
-numpy  = ">= 1.22"
+numpy  = ">= 1.12"
 
 [tool.poetry.dev-dependencies]
 pytest = "^5.2"