[build] Fix for build regression -- #4243

[kaby76]

This is a fix for #4243.

What changed?

• Trash version 0.23.6 is now used.
• The Github workflow now installs ts-node, typescript, and tsx because these are used in testing Antlr4ng and TypeScript. This change also fixes problems with split grammars with base classes for TypeScript.
• Templates for testing have been updated to correct various problems.
  • Replacing find with trglob.
  • Replacing global dotnet tool calls with local.
  • Fixing calls to Antlr4ng and TypeScript programs using npx tsx.
  • For CSharp target, adding code for outputting ambiguous trees with -ambig option, and trparse --ambig.

[kaby76]

This PR is required for several outstanding PRs.

[teverett]

@kaby76 thanks