chore(deps): update gh-pages dependencies

Author: renovate[bot]

.github/workflows/regenerate-crd-docs.yaml

@@ -62,7 +62,7 @@ jobs:
           # with "must not contain directives that would cause it to be
           # interpreted differently than if it were the main module"). Use the
           # project's published release binary instead - no Go toolchain needed.
-          CRD_DOCS_GENERATOR_VERSION=v0.12.8 # renovate: datasource=github-releases depName=giantswarm/crd-docs-generator
+          CRD_DOCS_GENERATOR_VERSION=v0.12.11 # renovate: datasource=github-releases depName=giantswarm/crd-docs-generator
           mkdir -p "$RUNNER_TEMP/crd-docs-generator/bin"
           curl -fsSL \
             -o "$RUNNER_TEMP/crd-docs-generator/bin/crd-docs-generator" \