Fix java deprecations and update to vault 1.19

[commjoen]

What kind of changes does this PR include?

• Fixes or refactors
• A new challenge
• Additional documentation
• Something else: updated vault everywhere to 1.19

Description

Relations

References

Checklist:

• All the contributions made are solely the work of me and my co-authors
• I used AI to generate parts of the content.
• I tested the changes in this PR (if applicable)
• I added unit tests to ensure my change works (when change in Java or on front-end code)
• I added UI tests to ensure my UI changes work (when change in the overall UI, not needed if just adding a challenge)
• The PR passes pre-commit hooks and automated tests

[github-actions]

🔨 Preview Build Complete!

Your changes have been built and pushed to GitHub Container Registry.

🐳 Docker Image: ghcr.io/owasp/wrongsecrets/wrongsecrets-pr:pr-2113-649767f

📦 Download & Test Locally:

1. 📁 Download Docker Image Artifact (look for wrongsecrets-preview-pr-2113)
2. Load and run the image:

# Download the artifact, extract it, then:
docker load < wrongsecrets-preview.tar
docker run -p 8080:8080 wrongsecrets-preview

🚀 Alternative - Pull from Registry:

docker pull ghcr.io/owasp/wrongsecrets/wrongsecrets-pr:pr-2113-649767f
docker run -p 8080:8080 ghcr.io/owasp/wrongsecrets/wrongsecrets-pr:pr-2113-649767f

Then visit: http://localhost:8080

📝 Changes in this PR:
- src/main/java/org/owasp/wrongsecrets/SecurityConfig.java
- src/main/resources/explanations/challenge56.adoc
- src/main/resources/templates/about.html
- src/main/resources/templates/challenge.html
- src/main/resources/templates/fragments/navigation.html
- src/main/resources/templates/welcome.html

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[github-actions]

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• pr-home.png - Your version of the home page
• main-home.png - Current main branch home page
• pr-about.png - Your version of the about page
• main-about.png - Current main branch about page

Compare these images to see the visual impact of your changes!

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[github-actions]

📸 Visual Diff Ready!

Screenshots comparing your changes with the main branch are available:

📁 Download Visual Diff Artifacts

🖼️ Included screenshots:

• pr-home.png vs main-home.png - Welcome page comparison
• pr-about.png vs main-about.png - About page comparison
• pr-challenge.png vs main-challenge.png - Challenge page comparison

🔍 How to review:

1. Download the artifact zip file
2. Extract and compare the pr-* and main-* images side by side
3. Look for visual differences in layout, styling, and content

💡 Tip: Use an image comparison tool or open both images in separate browser tabs to spot differences easily.

---

_{Visual diff generated by GitHub Actions • PR #2113}

[github-actions]

🔨 Preview Build Complete!

Your changes have been built and pushed to GitHub Container Registry.

🐳 Docker Image: ghcr.io/owasp/wrongsecrets/wrongsecrets-pr:pr-2113-64edfbd

📦 Download & Test Locally:

1. 📁 Download Docker Image Artifact (look for wrongsecrets-preview-pr-2113)
2. Load and run the image:

# Download the artifact, extract it, then:
docker load < wrongsecrets-preview.tar
docker run -p 8080:8080 wrongsecrets-preview

🚀 Alternative - Pull from Registry:

docker pull ghcr.io/owasp/wrongsecrets/wrongsecrets-pr:pr-2113-64edfbd
docker run -p 8080:8080 ghcr.io/owasp/wrongsecrets/wrongsecrets-pr:pr-2113-64edfbd

Then visit: http://localhost:8080

📝 Changes in this PR:
- src/main/java/org/owasp/wrongsecrets/SecurityConfig.java

Visual diff screenshots will be available shortly...

---

_{Preview built by GitHub Actions}

[github-actions]

📸 Visual Diff Ready!

Screenshots comparing your changes with the main branch are available:

📁 Download Visual Diff Artifacts

🖼️ Included screenshots:

• pr-home.png vs main-home.png - Welcome page comparison
• pr-about.png vs main-about.png - About page comparison
• pr-challenge.png vs main-challenge.png - Challenge page comparison

🔍 How to review:

1. Download the artifact zip file
2. Extract and compare the pr-* and main-* images side by side
3. Look for visual differences in layout, styling, and content

💡 Tip: Use an image comparison tool or open both images in separate browser tabs to spot differences easily.

---

_{Visual diff generated by GitHub Actions • PR #2113}