Simplify Jekyll build step in workflow

[CosmicJesterX]

Removed Docker run command for building Jekyll site.

Description

Related Issue

Fixes #(issue number)

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Performance improvement
• Code refactoring

How Has This Been Tested?

• Unit tests pass (go test ./...)
• Integration tests pass
• Golden file tests updated (if applicable) - UPDATE_GOLDEN=1 go test -run TestExhaustiveGoldenFiles
• Test coverage meets threshold (85%)
• Manual testing performed

Test Configuration

• Go version:
• OS:
• Protoc version:

Checklist

• My code follows the project's style guidelines (go fmt ./...)
• I have performed a self-review of my code
• I have commented my code where necessary
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have updated CLAUDE.md if this changes how the codebase works

Breaking Changes

Screenshots/Examples

Additional Notes