Update dependency shfmt to v3.12.0 (#50)

renovate[bot] · web-flow · commit 644c75272fa0 · 2025-07-10T10:12:54.000+01:00
Co-authored-by: renovate[bot] &lt;29139614+renovate[bot]@users.noreply.github.com&gt;
diff --git a/.tool-versions b/.tool-versions
@@ -1,2 +1,2 @@
 shellcheck 0.10.0
-shfmt 3.11.0
+shfmt 3.12.0
