chore(deps): update ghcr.io/google/yamlfmt docker tag to v0.18.1 (#309)

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

Author: renovate[bot]

Makefile

@@ -39,7 +39,7 @@ check-python-formatting:
 	docker run $(DOCKER_RUN_OPTS) check-python-formatting
 
 # renovate: depName=ghcr.io/google/yamlfmt
-YAMLFMT_VERSION=0.18.0@sha256:00c2a5154b5a3c81f99ebd5d295de512c41633219c208aea69139ea36f27015d
+YAMLFMT_VERSION=0.18.1@sha256:79474d990f38705aa4ae46961e8b68082ddc88fde62e2f275fcea40c1e05018f
 
 .PHONY: check-yaml-formatting
 check-yaml-formatting: