Update GitHub Action reference for tbroadley/spellchecker-cli-action …

…to specify major version only to reduce noise from dependency updates, leave JustinBeckwith/linkinator-action bound to v1.10.4 (otherwise it seems to fail with high frequency in markdownlint), add 60 second timeout for linkinator.

.github/workflows/checkers.yml

@@ -16,12 +16,13 @@ jobs:
     - uses: JustinBeckwith/[email protected]
       with:
         paths: '*.md'
+        timeout: 60000
 
   spellcheck:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: tbroadley/spellchecker-cli-action@v1.1.1
+    - uses: tbroadley/spellchecker-cli-action@v1
       with:
         dictionaries: '.github/dictionary.txt'
         files: '*.md'