chore(deps): update dependency shfmt to v3.12.0 (#21)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.tool-versions

@@ -1,2 +1,2 @@
 shellcheck 0.10.0
-shfmt 3.11.0
+shfmt 3.12.0