build(deps): Bump terraform-docs/terraform-docs from 0.19.0 to 0.20.0

Bumps terraform-docs/terraform-docs from 0.19.0 to 0.20.0.

---
updated-dependencies:
- dependency-name: terraform-docs/terraform-docs
  dependency-version: 0.20.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Dockerfile.tools

@@ -19,6 +19,6 @@ FROM motoserver/moto:5.1.3 as moto
 
 FROM mstruebing/editorconfig-checker:v3.2.1 as ec
 
-FROM quay.io/terraform-docs/terraform-docs:0.19.0 as tfdocs
+FROM quay.io/terraform-docs/terraform-docs:0.20.0 as tfdocs
 
 FROM rclone/rclone:1.69.1 as rclone