Markdown Strikethrough not rendering correctly
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### Checklist
<!-- Please test the latest versions, that will remove the possibility that you see a bug that is fixed in a newer version. -->
- [x] I'm using the latest version of the extension ([see the latest version in the right column of this page](https://marketplace.visualstudio.com/items?itemName=GitLab.gitlab-workflow))
- Extension version: v3.62.0
- [x] I'm using the latest VS Code version ([find the latest version here](https://github.com/microsoft/vscode/releases))
- VS Code version: 1.78.0
- [x] I'm using a supported version of GitLab ([see README for the supported version](https://gitlab.com/gitlab-org/gitlab-vscode-extension/-/blob/main/README.md#minimum-supported-version))
- GitLab version: happens on `gitlab.com`
### Summary
Markdown strikethrough is not rendered properly
### Steps to reproduce
- Create a new MR
- Edit the MR on gitlab.com and add a new line with `~something~`
### What is the current _bug_ behavior?
Markdown is rendered as: \~strikethrough\~
### What is the expected _correct_ behavior?
Markdown should be rendered as: ~strikethrough~
issue