Switching from checkout to download-file-action for .vale.ini

Because the stylelint GitHub workflow uses download-release-action to fetch vale-chef, this conflicts with a full checkout causing the error

`rm: cannot remove '/home/runner/work/chef-web-docs/chef-web-docs/tools/vale/chef/vale-chef-0.2.4': Permission denied`

So this commit changes to a download-file-action instead of a checkout to fetch the `.vale.ini`

One downside to this (as is the case with the downloading of the `.markdownlint.yaml` file) is that the version of `.vale.ini` that's fetched is just whatever is at the HEAD of main, instead of the version in the PR that the check is running on.

Signed-off-by: Gene Wood <gene_wood@cementhorizon.com>

.github/workflows/lint.yml

@@ -59,7 +59,11 @@ jobs:
           tag: 'v0.2.4'
           path: tools/vale/chef
           token: "${{ secrets.GITHUB_TOKEN }}"
-      - uses: actions/checkout@v3
+      - uses: carlosperate/download-file-action@v1.1.2
+        id: download-vale-config
+        with:
+          file-url: 'https://raw.githubusercontent.com/chef/chef-web-docs/main/.vale.ini'
+          file-name: '.vale.ini'
       - uses: errata-ai/vale-action@reviewdog
         env:
           GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}