Auto merge of #5235 - flip1995:tag_deploy_fix, r=phansch
Auto merge of #5235 - flip1995:tag_deploy_fix, r=phansch

Fix deploy script for tag deploys

By hand updating the documentation for the `rust-1.41.1` release, I found, that the deploy script was buggy for tag deploys. Luckily we weren't affected yet (will only run if the commit of the tag already has the workflow config, so probably ~`rust-1.43.0`)

The bug:

When a tag was deployed, until now it also updated the master documentation to the state of the tag. This was because the `git add .` not only updated the files created or modified by the tag commit, but also the master lints.json file.

changelog: none

aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust,graydon/rust