CI: pin to Hugo 0.145.0

0.146 had breaking changes again, this time missing a template:
Error: error building site: html/template:single.html:94:24: no such template "_internal/disqus.html"

Signed-off-by: Daniel Maslowski <info@orangecms.org>

Author: orangecms

.github/workflows/gh-pages.yml

@@ -16,9 +16,9 @@ jobs:
           fetch-depth: 0    # Fetch all history for .GitInfo and .Lastmod
 
       - name: Setup Hugo
-        uses: peaceiris/actions-hugo@v2
+        uses: peaceiris/actions-hugo@v3
         with:
-          hugo-version: 'latest'
+          hugo-version: '0.145.0'
           # extended: true
 
       - name: Build