Add GitHub Actions Workflows for SLSA Provenance, Jekyll Deployment, Node.js Setup, and macOS Runner

[JoftheV]

Status	Type	Env Vars Change
Ready	Feature	No

Problem

• Need to automate the generation of SLSA provenance files to achieve compliance.
• Require an automated process for building and deploying a Jekyll site to GitHub Pages.
• Need a standardized setup for a Node.js environment.
• Lack of workflow for macOS runner specification.

Solution

• Introduced a new workflow for generating SLSA provenance files, achieving level 3 compliance.
• Added a workflow for building and deploying a Jekyll site to GitHub Pages.
• Set up a workflow for configuring a Node.js environment with caching and version specification.
• Specified macOS runner in a separate workflow file.

Test results

Add your screenshots or recording about testing

Other changes

• Added a badge to the README.md file to display the status of the "Update api-schemas" GitHub Actions workflow.

Deploy Notes

There are no new dependencies, scripts, or environment variables introduced with this PR.