chore: bump terraform-docs to v0.20.0

Signed-off-by: terraform-docs-bot <[email protected]>

Author: tf-docs-bot

Dockerfile

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM quay.io/terraform-docs/terraform-docs:0.19.0
+FROM quay.io/terraform-docs/terraform-docs:0.20.0
 
 RUN set -x \
     && apk update \

README.md

@@ -9,7 +9,7 @@ branch.
 
 ## Version
 
-`v1.3.0` (uses [terraform-docs] v0.19.0, which is supported and tested on Terraform
+`v1.3.0` (uses [terraform-docs] v0.20.0, which is supported and tested on Terraform
 version 0.11+ and 0.12+ but may work for others.)
 
 ### Upgrade v0 to v1