Fix a conflict between lint-staged and tsc

lint-staged passed a list of files to tsc.  tsc cannot find its
configuration when this happens.  For the workaround, see
lint-staged/lint-staged#825.

lint-staged.config.mjs

@@ -5,6 +5,13 @@ export default {
   "*.json": ["prettier --write"],
   "*.md": ["prettier --write"],
   "*.mjs": ["eslint", "prettier --write"],
-  "*.ts": ["eslint", "prettier --write", "tsc --noEmit"],
+  "*.ts": [
+    "eslint",
+    "prettier --write",
+    // Call TypeScript compiler through a function to avoid getting a list of
+    // files passed to it.
+    // https://github.com/lint-staged/lint-staged/issues/825
+    () => "tsc --noEmit",
+  ],
   "*.yaml": ["prettier --write"],
 };