Fix typos found by codespell (#650)

dist/setup/index.js

@@ -69290,7 +69290,7 @@ const core = __importStar(__nccwpck_require__(2186));
 const tc = __importStar(__nccwpck_require__(7784));
 // Python has "scripts" or "bin" directories where command-line tools that come with packages are installed.
 // This is where pip is, along with anything that pip installs.
-// There is a seperate directory for `pip install --user`.
+// There is a separate directory for `pip install --user`.
 //
 // For reference, these directories are as follows:
 //   macOS / Linux: