Add Changelog from 2.7.0 release

[acuarica]

PR description

This PR includes changes to be published in 2.7.0 release, codenamed Aranha.

2.7.0 - Aranha 🕷️

This release brings some new exciting features regarding the debugger, namely it allows you to fetch external sources when debugging external transactions, reuse your truffle-config.js networks to debug a transaction and trigger the visual debugger from the command line. It also includes a fix that removes deprecated networks after the merge and a range of smaller fixes and improvements.

Give it a try and let us know what you think!

What's Changed

• Clarify Ganache CLI usage in Requirements Page #274 (acuarica)
• Allow Node v18 in Required Apps #272 (acuarica)
• Declare network option in launch configuration #267 (acuarica)
• Include disableFetchExternal flag to avoid debugging with fetching external sources #255 (acuarica)
• Running truffle debug with appropriate flag --vscode triggers debugger to launch in VS Code #231 and #254 (xhulz)
• Invalidate require cache of truffle-config.js when debugging #265 (acuarica)
• Support network option in addition to providerUrl when debugging #261 (xhulz)
• Fetch external sources when debugging a forked network #252 (acuarica)
• Contracts not detected #251 (xhulz)
• Remove deprecated networks #250 (michaeljohnbennett)

Documentation

• I thought about documentation and added the doc-change-required label to this PR if documentation updates are required.