Build/Test Tools: Update devDependencies.

This updates the following `devDependencies`:
- `@playwright/test` from `1.50.1` to `1.56.1`.
- `@pmmmwh/react-refresh-webpack-plugin` from `0.5.15` to `0.6.1`.
- `autoprefixer` from `10.4.20` to `10.4.22`.
- `chalk` from `5.4.1` to `5.6.2`.
- `copy-webpack-plugin` from `13.0.0` to `13.0.1`.
- `cssnano` from `7.0.6` to `7.1.2`.
- `dotenv` from `16.4.7` to `17.2.3`.
- `dotenv-expand` from `12.0.1` to `12.0.3`.
- `grunt-sass` from `4.0.0` to `4.0.1`.
- `postcss` from `8.5.3` to `8.5.6`.
- `qunit` from `2.23.1` to `2.24.2`.
- `sass` from `1.85.1` to `1.94.0`.
- `terser-webpack-plugin` from `5.3.12` to `5.3.14`.
- `uuid` from `11.1.0` to `13.0.0`.
- `wait-on` from `8.0.2` to `9.0.3`.

A new variable, `DOTENV_CONFIG_QUIET`, has been added to the `.env.example` file to silence tips output by the `dotenv` dependency.

Additionally, `npm audit fix` has been run.

Props peterwilsoncc, desrosj.
See #63171.

git-svn-id: https://develop.svn.wordpress.org/trunk@61205 602fd350-edb4-49c9-b593-d223f7449a82

Author: desrosj

.env.example

@@ -67,3 +67,8 @@ LOCAL_WP_TESTS_DOMAIN=example.org
 
 # The URL to use when running e2e tests.
 WP_BASE_URL=http://localhost:${LOCAL_PORT}
+
+##
+# This silences the tips output by the dotenv package.
+##
+DOTENV_CONFIG_QUIET=true