linkChecker: use the correct ref of the lychee-action GitHub Action

In #75, the
ref was changed from `master` to `1`. However, that tag does not exist
in https://github.com/lycheeverse/lychee-action/tags.

As a consequence, there has not been a single successful run of
https://github.com/lycheeverse/lycheeverse.github.io/actions/workflows/links.yml
since April 30th.

Let's fix this by using the correct ref, the one that was most likely
intended: https://github.com/lycheeverse/lychee-action/releases/tag/v1

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

.github/workflows/links.yml

@@ -18,7 +18,7 @@ jobs:
           package-manager: pnpm@latest
 
       - name: Link Checker
-        uses: lycheeverse/lychee-action@1
+        uses: lycheeverse/lychee-action@v1
         with:
           args: --base dist --exclude-all-private dist
           fail: True