Update black requirement from <26 to <27

dependabot[bot] · web-flow · commit 1f7300057798 · 2026-03-24T08:46:16.000Z
Updates the requirements on [black](https://github.com/psf/black) to permit the latest version. - [Release notes](https://github.com/psf/black/releases) - [Changelog](https://github.com/psf/black/blob/main/CHANGES.md) - [Commits](psf/black@18.3a0...26.3.1) --- updated-dependencies: - dependency-name: black dependency-version: 26.3.1 dependency-type: direct:development ... Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pyproject.toml b/pyproject.toml
@@ -124,7 +124,7 @@ doc = [
 
 # pip requirements for all the CI builds
 test = [
-    "black<26",
+    "black<27",
     "certifi",
     "coverage!=6.3",
     "psutil; sys_platform != 'cygwin'",
