chore: update Ruby to 3.4.5

Author: gregorias

.github/workflows/jekyll-build-and-deploy.yml

@@ -41,7 +41,7 @@ jobs:
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.4.1
+          ruby-version: 3.4.5
           bundler-cache: true
 
       - name: Build site

.ruby-version

@@ -1 +1 @@
-3.4.1
+3.4.5

Justfile

@@ -5,4 +5,5 @@ build:
 test: build
   bundle exec htmlproofer _site \
       --no-check_external_hash \
+      --disable_external \
       --ignore-urls "/^http:\/\/127.0.0.1/,/^http:\/\/0.0.0.0/,/^http:\/\/localhost/,/fonts.googleapis.com/,/fonts.gstatic.com/,/linkedin.com\/in\/grzegorz-milka-55270490/,/twitter.com\/intent\/tweet/,/archive.ph/,/statmodeling.stat.columbia.edu/"

README.md

@@ -26,11 +26,11 @@ The blog is hosted on GitHub Pages at
 
 1. Install project dependencies:
 
-    ```bash
-    rbenv install
-    gem install bundler
-    bundler install
-    ```
+   ```bash
+   rbenv install
+   gem install bundler
+   bundler install
+   ```
 
 ### Testing
 
@@ -57,13 +57,15 @@ jekyll build
 To update the used Ruby version:
 
 1. Update `.ruby-version`.
+   1. (Optional) Install the new version on your system with `rbenv install x.y.z`.
 2. Update `.github/workflows/jekyll-build-and-deploy.yml`.
 3. Clean currently generated files and regenerate them:
 
-    ```bash
-    git clean -xdf
-    bundler install
-    just build
+   ```bash
+   git clean -xdf
+   bundler install
+   just build
+   ```
 
 ### Updating gems