Vale: Update emdash test to error#1635

esmerel merged 2 commits intomasterfluent/fluent-bit-docs:masterfrom

lynettemiles/sc-135368/set-emdash-vale-test-to-error-for-fluentfluent/fluent-bit-docs:lynettemiles/sc-135368/set-emdash-vale-test-to-error-for-fluentCopy head branch name to clipboard