* feat: add Erlang problem matchers for erlc, dialyzer, CT, and EUnit
Adds GitHub Actions problem matchers for Erlang tooling, matching the
existing Elixir matcher support. Covers erlc errors/warnings (which
also catches dialyzer output), Common Test failures, and EUnit failures.
Closes#390
* chore: rebuild dist bundle and format test file
* refactor: move Erlang matchers into installOTP function
Moves maybeEnableErlangProblemMatchers() call inside installOTP(),
between setOutput and endGroup, matching the Elixir pattern.
* refactor: extract generic maybeEnableProblemMatchers function
Replaces separate maybeEnableErlangProblemMatchers and
maybeEnableElixirProblemMatchers with a single generic
maybeEnableProblemMatchers(language) and a problemMatchersEnabled()
helper.
* fix: use static paths for ncc to resolve matcher JSON files
ncc cannot trace dynamic template literals, so the matcher JSON files
were not being copied to dist/. Use a static map of paths instead.