Upgrading to Node 20 and fix commits.author is undefined

What's Changed

• 🎨 Extra space in the .setAuthor
• 🐛 Cannot read properties of undefined (reading 'author') #8
• 📝 More spacing in the note for the DEV post
• 📝 Adding screenshots embeds to local files
• 📝 Edit logo
• 💸 Edit BMC link for sponsoring
• 🎨 .setURL(url) in the Discord embed
• ⚡ async function should have await expression
• 🎨 Improve .gitignore
• 📝 Put threadId to optional string
• 🎨 action.yml: Edit branding and version of Node.js to v20 for running file
• 🎨 Reformat of the tables, and deletion of an article link from my personal blog
• Migrate GitHub Action to Node v20 by @thomasbnt in #20

Full Changelog: v1.6.0...v1.7.0