[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/domluna/JuliaFormatter.jl: v2.1.2 → v2.1.6](domluna/JuliaFormatter.jl@v2.1.2...v2.1.6)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -12,6 +12,6 @@ repos:
     exclude_types: [markdown]  # incompatible with Literate.jl
 
 - repo: "https://github.com/domluna/JuliaFormatter.jl"
-  rev: v2.1.2
+  rev: v2.1.6
   hooks:
   - id: "julia-formatter"