bug: building docs for tags is broken

[ncdc]

Describe the bug

Builidng docs for tags does not complete successfully

Steps To Reproduce

1. git push a tag
2. https://github.com/kcp-dev/kcp/actions/workflows/docs-gen-and-push.yaml fails

Expected Behaviour

Success

Additional Context

Need to add a mkdir -p

2022-12-13T17:15:18.9821869Z ##[group]Run cd kcp/docs
2022-12-13T17:15:18.9822103Z �[36;1mcd kcp/docs�[0m
2022-12-13T17:15:18.9822315Z �[36;1mcat <<EOF > temp.txt�[0m
2022-12-13T17:15:18.9822533Z �[36;1m#version-start�[0m
2022-12-13T17:15:18.9822749Z �[36;1marchived_version = true�[0m
2022-12-13T17:15:18.9822983Z �[36;1mversion = "refs/tags/v0.10.0"�[0m
2022-12-13T17:15:18.9823190Z �[36;1mEOF�[0m
2022-12-13T17:15:18.9823393Z �[36;1med config.toml<<EOF�[0m
2022-12-13T17:15:18.9823612Z �[36;1m/^#version-start�[0m
2022-12-13T17:15:18.9823825Z �[36;1m+,/^#version-end/-1d�[0m
2022-12-13T17:15:18.9824142Z �[36;1m-r !sed -n '/^#version-start/,/^#version-end/p' temp.txt | grep -v '^#'�[0m
2022-12-13T17:15:18.9824415Z �[36;1mw�[0m
2022-12-13T17:15:18.9824638Z �[36;1mq�[0m
2022-12-13T17:15:18.9824812Z �[36;1mEOF�[0m
2022-12-13T17:15:18.9825047Z �[36;1mmv content/en/main content/en/refs/tags/v0.10.0�[0m
2022-12-13T17:15:18.9825280Z �[36;1mhugo --minify�[0m
2022-12-13T17:15:18.9825524Z �[36;1mrsync -av public/refs/tags/v0.10.0 ../../docs�[0m
2022-12-13T17:15:18.9879540Z shell: /usr/bin/bash -e {0}
2022-12-13T17:15:18.9879774Z ##[endgroup]
2022-12-13T17:15:18.9933688Z ##[debug]/usr/bin/bash -e /home/runner/work/_temp/9efec89e-07c8-4241-893a-ef538cb90208.sh
2022-12-13T17:15:19.0495270Z 4134
2022-12-13T17:15:19.0496268Z #version-start
2022-12-13T17:15:19.0518683Z 54
2022-12-13T17:15:19.0519349Z 4146
2022-12-13T17:15:19.0533656Z mv: cannot move 'content/en/main' to 'content/en/refs/tags/v0.10.0': No such file or directory
2022-12-13T17:15:19.0548700Z ##[error]Process completed with exit code 1.