tools: de-rollup-ify lint-md

The rollup stuff stopped working with the massive remark ecosystem move
to ESM. Rather than try to troubleshoot, simplify things by removing
rollup. It's a great tool for a lot of uses, but less may be more here.

This does mean checking in a `node_modules` directory so that the linter
runs out-of-the-box, like we do for ESLint.

.github/workflows/linters.yml

@@ -55,7 +55,7 @@ jobs:
       - name: Get release version numbers
         if: ${{ github.event.pull_request.base.ref == github.event.pull_request.base.repo.default_branch }}
         id: get-released-versions
-        run: ./tools/node-lint-md-cli-rollup/src/list-released-versions-from-changelogs.mjs
+        run: ./tools/node-lint-md/list-released-versions-from-changelogs.mjs
       - name: Lint docs
         run: |
           echo "::add-matcher::.github/workflows/remark-lint-problem-matcher.json"

Makefile

@@ -1212,13 +1212,10 @@ bench-addons-clean:
 
 .PHONY: lint-md-rollup
 lint-md-rollup:
-	$(RM) tools/.*mdlintstamp
-	cd tools/node-lint-md-cli-rollup && npm install
-	cd tools/node-lint-md-cli-rollup && npm run build-node
+	$(warning Deprecated no-op target 'lint-md-rollup')
 
 .PHONY: lint-md-clean
 lint-md-clean:
-	$(RM) -r tools/node-lint-md-cli-rollup/node_modules
 	$(RM) tools/.*mdlintstamp
 
 .PHONY: lint-md-build
@@ -1235,7 +1232,7 @@ LINT_MD_TARGETS = doc src lib benchmark test tools/doc tools/icu $(wildcard *.md
 LINT_MD_FILES = $(shell $(FIND) $(LINT_MD_TARGETS) -type f \
 	! -path '*node_modules*' ! -path 'test/fixtures/*' -name '*.md' \
 	$(LINT_MD_NEWER))
-run-lint-md = tools/lint-md.js -q -f --no-stdout $(LINT_MD_FILES)
+run-lint-md = tools/node-lint-md/cli.mjs -q -f --no-stdout $(LINT_MD_FILES)
 # Lint all changed markdown files maintained by us
 tools/.mdlintstamp: $(LINT_MD_FILES)
 	$(info Running Markdown linter...)