build: lint .eslintrc.js file

Update default files to be linted with ESLint to include .eslintrc.js.

PR-URL: #19122
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Makefile

@@ -1101,7 +1101,7 @@ lint-md:
 	@echo "To install (requires internet access) run: $ make lint-md-build"
 endif
 
-LINT_JS_TARGETS = benchmark doc lib test tools
+LINT_JS_TARGETS = .eslintrc.js benchmark doc lib test tools
 
 run-lint-js = tools/node_modules/eslint/bin/eslint.js --cache \
 	--ext=.js,.mjs,.md $(LINT_JS_TARGETS) --ignore-pattern '!.eslintrc.js'

vcbuild.bat

@@ -514,7 +514,7 @@ if defined lint_js_ci goto lint-js-ci
 if not defined lint_js goto exit
 if not exist tools\node_modules\eslint goto no-lint
 echo running lint-js
-%config%\node tools\node_modules\eslint\bin\eslint.js --cache --rule "linebreak-style: 0" --ext=.js,.mjs,.md benchmark doc lib test tools
+%config%\node tools\node_modules\eslint\bin\eslint.js --cache --rule "linebreak-style: 0" --ext=.js,.mjs,.md .eslintrc.js benchmark doc lib test tools
 goto exit
 
 :lint-js-ci