Switch workflow to pinned Hugo version

.github/workflows/build-and-deploy.yaml

@@ -49,19 +49,19 @@ jobs:
     # See: https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#jobsjob_idruns-on
     runs-on: ubuntu-latest
 
-    # Use this to pin the Hugo version, if necessary.
     env:
+      # The Hugo version to use: https://github.com/gohugoio/hugo/releases
+      # NOTE: It sometimes happens that new Hugo versions break the site. So I've decided to always
+      #   "pin" the Hugo version (instead of using the latest version). This way, the Hugo version
+      #   can be updated with a pull request where I can test the new version.
       HUGO_VERSION: 0.122.0
 
     steps:
-      - name: Install Hugo CLI (latest)
-        if: ${{ !env.HUGO_VERSION }}
-        run: sudo snap install hugo
-
-      - name: Install Hugo CLI (specific)
-        if: ${{ env.HUGO_VERSION }}
-        # NOTE: "snap" doesn't support installing old versions, if they're not provided by the package authors.
-        #   This snippet is taken from: https://gohugo.io/hosting-and-deployment/hosting-on-github/
+      - name: Install Hugo CLI
+        # This snippet is taken from: https://gohugo.io/hosting-and-deployment/hosting-on-github/
+        # NOTE: We can't use "snap" for this as it doesn't support installing old versions, if they're not provided by the package authors.
+        #   Note, though, that this call is extremely fast (way faster than using snap), most likely because the source is also hosted
+        #   by GitHub.
         run: |
           wget -O ${{ runner.temp }}/hugo.deb https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_linux-amd64.deb
           sudo dpkg -i ${{ runner.temp }}/hugo.deb