[html] "Auto Closing Tags" adds unnecessary tags in some cases with prettier-vscode

<!-- ⚠️⚠️ Do Not Delete This! bug_report_template ⚠️⚠️ --> <!-- Please read our Rules of Conduct: https://opensource.microsoft.com/codeofconduct/ --> <!-- 🕮 Read our guide about submitting issues: https://github.com/microsoft/vscode/wiki/Submitting-Bugs-and-Suggestions --> <!-- 🔎 Search existing issues to avoid creating duplicates. --> <!-- 🧪 Test using the latest Insiders build to see if your issue has already been fixed: https://code.visualstudio.com/insiders/ --> <!-- 💡 Instead of creating your report here, use 'Report Issue' from the 'Help' menu in VS Code to pre-fill useful information. --> <!-- 🔧 Launch with `code --disable-extensions` to check. --> Does this issue occur when all extensions are disabled?: No(with prettier-vscode) <!-- 🪓 If you answered No above, use 'Help: Start Extension Bisect' from Command Palette to try to identify the cause. --> <!-- 📣 Issues caused by an extension need to be reported directly to the extension publisher. The 'Help > Report Issue' dialog can assist with this. --> - VS Code Version: 1.62.3 (Universal) - OS Version: macOS 11.3.1 Steps to Reproduce: 1. install prettier-vscode v9.0.0 2. Follow "Steps To Reproduce" section in this link. https://github.com/prettier/prettier-vscode/issues/2127 As explained in the above link, "HTML: Auto Closing Tags" settings adds unnecessary tags in some cases with prettier-vscode's html formetter. In this case, I confirmed prettier-vscode returns right value to vs code via `vscode.languages.registerDocumentFormattingEditProvider`. And you can see more detailed discussion in the above issue's link.