Update TypeScript to the latest stable version

TypeScript has been updated to the latest stable version. Additionally,
the version range has been updated to use `~` because TypeScript does
not follow SemVer (they make breaking changes as minor updates).

The configuration has been updated to match the module template. Note
that the module template is still using TypeScript v4.7, but I reviewed
the changes made in v4.8 [1] and none of them warranted additional
configuration changes.

Just as in the module template, a separate `tsconfig` file has been
created to distinguish build settings from settings used to compile
unit tests.

The one configuration difference is the compilation target. The target
is ES2019 here because this is a developer tool, so we don't need to
stick to ES2017 for browser compatibility.

[1]: https://devblogs.microsoft.com/typescript/announcing-typescript-4-8/

package.json

@@ -27,7 +27,7 @@
     "lint": "yarn lint:eslint && yarn lint:misc --check",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write",
     "build:clean": "rimraf dist && yarn build",
-    "build": "tsc --project .",
+    "build": "tsc --project tsconfig.build.json",
     "changelog": "node dist/cli.js"
   },
   "dependencies": {
@@ -61,7 +61,7 @@
     "prettier": "^2.2.1",
     "rimraf": "^3.0.2",
     "ts-jest": "^26.5.6",
-    "typescript": "^4.2.4"
+    "typescript": "~4.8.4"
   },
   "lavamoat": {
     "allowScripts": {

tsconfig.build.json

@@ -0,0 +1,13 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "declaration": true,
+    "inlineSources": true,
+    "noEmit": false,
+    "outDir": "dist",
+    "rootDir": "src",
+    "sourceMap": true
+  },
+  "include": ["./src/**/*.ts"],
+  "exclude": ["./src/**/*.test.ts"]
+}

tsconfig.json

@@ -1,18 +1,16 @@
 {
   "compilerOptions": {
-    "declaration": true,
     "esModuleInterop": true,
-    "inlineSources": true,
+    "exactOptionalPropertyTypes": true,
+    "forceConsistentCasingInFileNames": true,
     "lib": ["ES2020"],
     "module": "CommonJS",
-    "moduleResolution": "Node",
-    "outDir": "dist",
-    "rootDir": "src",
-    "sourceMap": true,
+    "moduleResolution": "node",
+    "noEmit": true,
+    "noErrorTruncation": true,
+    "noUncheckedIndexedAccess": true,
     "strict": true,
-    "target": "ES2019",
-    "typeRoots": ["./node_modules/@types"]
+    "target": "ES2019"
   },
-  "exclude": ["**/*.test.ts"],
-  "include": ["./src/**/*.ts"]
+  "exclude": ["./dist/**/*"]
 }

yarn.lock

@@ -739,7 +739,7 @@ __metadata:
     rimraf: ^3.0.2
     semver: ^7.3.5
     ts-jest: ^26.5.6
-    typescript: ^4.2.4
+    typescript: ~4.8.4
     yargs: ^17.0.1
   bin:
     auto-changelog: dist/cli.js
@@ -7181,23 +7181,23 @@ __metadata:
   languageName: node
   linkType: hard
 
-"typescript@npm:^4.2.4":
-  version: 4.2.4
-  resolution: "typescript@npm:4.2.4"
+"typescript@npm:~4.8.4":
+  version: 4.8.4
+  resolution: "typescript@npm:4.8.4"
   bin:
     tsc: bin/tsc
     tsserver: bin/tsserver
-  checksum: 89c397df192f239359ad798b96d8e8d552e12c0c189ac5676cec4c20c410d6eec636b8e59a88f2aef0a56d961a9678d99c400099be9b7cae2f7b062eb4b7b171
+  checksum: 3e4f061658e0c8f36c820802fa809e0fd812b85687a9a2f5430bc3d0368e37d1c9605c3ce9b39df9a05af2ece67b1d844f9f6ea8ff42819f13bcb80f85629af0
   languageName: node
   linkType: hard
 
-"typescript@patch:typescript@^4.2.4#~builtin<compat/typescript>":
-  version: 4.2.4
-  resolution: "typescript@patch:typescript@npm%3A4.2.4#~builtin<compat/typescript>::version=4.2.4&hash=701156"
+"typescript@patch:typescript@~4.8.4#~builtin<compat/typescript>":
+  version: 4.8.4
+  resolution: "typescript@patch:typescript@npm%3A4.8.4#~builtin<compat/typescript>::version=4.8.4&hash=701156"
   bin:
     tsc: bin/tsc
     tsserver: bin/tsserver
-  checksum: eb86e0e8022e5297f7a7b871b6edfbf33b57049416ada8bf97c358760125c7c79f074fbebd1b8e8230f858ae05eb22ad0e805e8f6acd5eae1fa886681624c15e
+  checksum: 301459fc3eb3b1a38fe91bf96d98eb55da88a9cb17b4ef80b4d105d620f4d547ba776cc27b44cc2ef58b66eda23fe0a74142feb5e79a6fb99f54fc018a696afa
   languageName: node
   linkType: hard