[deps]: Update eslint to v9 (#867)

* [deps]: Update eslint to v9

* resolve lint errors, upgrade eslint, replace unmaintained packages

* refresh lockfile

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Brandon <btreston@bitwarden.com>
Co-authored-by: Thomas Rittson <31796059+eliykat@users.noreply.github.com>
Co-authored-by: Thomas Rittson <trittson@bitwarden.com>

jest.config.cjs

@@ -0,0 +1,49 @@
+const { pathsToModuleNameMapper } = require("ts-jest");
+const { compilerOptions } = require("./tsconfig");
+
+const tsPreset = require("ts-jest/jest-preset");
+const angularPreset = require("jest-preset-angular/jest-preset");
+const { defaultTransformerOptions } = require("jest-preset-angular/presets");
+
+/** @type {import('ts-jest').JestConfigWithTsJest} */
+module.exports = {
+  // ...tsPreset,
+  // ...angularPreset,
+  preset: "jest-preset-angular",
+
+  reporters: ["default", "jest-junit"],
+
+  collectCoverage: true,
+  // Ensure we collect coverage from files without tests
+  collectCoverageFrom: ["src/**/*.ts"],
+  coverageReporters: ["html", "lcov"],
+  coverageDirectory: "coverage",
+
+  testEnvironment: "jsdom",
+  testMatch: ["**/+(*.)+(spec).+(ts)"],
+
+  roots: ["<rootDir>"],
+  modulePaths: [compilerOptions.baseUrl],
+  moduleNameMapper: pathsToModuleNameMapper(compilerOptions.paths, { prefix: "<rootDir>/" }),
+  setupFilesAfterEnv: ["<rootDir>/test.setup.ts"],
+  // Workaround for a memory leak that crashes tests in CI:
+  // https://github.com/facebook/jest/issues/9430#issuecomment-1149882002
+  // Also anecdotally improves performance when run locally
+  maxWorkers: 3,
+
+  transform: {
+    "^.+\\.tsx?$": [
+      "jest-preset-angular",
+      // 'ts-jest',
+      {
+        ...defaultTransformerOptions,
+        tsconfig: "./tsconfig.json",
+        // Further workaround for memory leak, recommended here:
+        // https://github.com/kulshekhar/ts-jest/issues/1967#issuecomment-697494014
+        // Makes tests run faster and reduces size/rate of leak, but loses typechecking on test code
+        // See https://bitwarden.atlassian.net/browse/EC-497 for more info
+        isolatedModules: true,
+      },
+    ],
+  },
+};