Update minor dependencies (#961)

Author: cjbarth

.eslintignore

@@ -0,0 +1,58 @@
+import eslint from "@eslint/js";
+import eslintPluginTypeScript from "@typescript-eslint/eslint-plugin";
+import tsParser from "@typescript-eslint/parser";
+import eslintConfigPrettier from "eslint-config-prettier/flat";
+import pluginChaiFriendly from "eslint-plugin-chai-friendly";
+import mochaPlugin from "eslint-plugin-mocha";
+import { globalIgnores } from "eslint/config";
+import globals from "globals";
+import tseslint from "typescript-eslint";
+
+export default tseslint.config([
+  globalIgnores(["coverage/**", "lib/**"]),
+  eslint.configs.recommended,
+  tseslint.configs.recommended,
+  tseslint.configs.strict,
+  mochaPlugin.configs.flat.recommended,
+  {
+    files: ["**/*"],
+    rules: {
+      "linebreak-style": ["error", "unix"],
+    },
+  },
+  {
+    files: ["**/*.{js,ts}"],
+    languageOptions: {
+      parser: tsParser,
+      parserOptions: {
+        project: "./tsconfig.eslint.json",
+        ecmaVersion: 2020,
+        sourceType: "module",
+      },
+      globals: { ...globals.node },
+    },
+    plugins: {
+      "@typescript-eslint": eslintPluginTypeScript,
+    },
+    rules: {
+      "no-console": "warn",
+      "@typescript-eslint/no-non-null-assertion": "error",
+      "@typescript-eslint/no-unused-vars": "error",
+      "@typescript-eslint/no-invalid-void-type": "off",
+      "@typescript-eslint/no-dynamic-delete": "off",
+      "@typescript-eslint/no-unused-expressions": "off",
+    },
+  },
+  {
+    files: ["**/*.spec.{js,ts}"],
+    languageOptions: {
+      globals: { ...globals.mocha },
+    },
+    plugins: {
+      mocha: mochaPlugin,
+      "chai-friendly": pluginChaiFriendly,
+    },
+    rules: {},
+  },
+  eslintConfigPrettier, // goes last
+]);