chore(deps-dev): bump postcss from 8.4.31 to 8.4.39 (#429) · BristolSTA/uobtheatre-web@4440de6

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

':height' should be on a new line

':throttle' should be on a new line

'class' should be on a new line

'@close' should be on a new line

'href' should be on a new line

':is-root' should be on a new line

'href' should be on a new line

'href' should be on a new line

Expected 1 line break after opening tag (`<table-head-item>`), but no line breaks found

Expected 1 line break before closing tag (`</table-head-item>`), but no line breaks found

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