chore(deps): bump @nuxtjs/pwa from 3.0.0-beta.19 to 3.0.0-beta.20

Bumps [@nuxtjs/pwa](https://github.com/nuxt-community/pwa-module) from 3.0.0-beta.19 to 3.0.0-beta.20.
- [Release notes](https://github.com/nuxt-community/pwa-module/releases)
- [Changelog](https://github.com/nuxt-community/pwa-module/blob/dev/CHANGELOG.md)
- [Commits](https://github.com/nuxt-community/pwa-module/compare/v3.0.0-beta.19...v3.0.0-beta.20)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -21,7 +21,7 @@
         "@nuxtjs/axios": "^5.9.5",
         "@nuxtjs/google-analytics": "^2.2.3",
         "@nuxtjs/google-tag-manager": "^2.3.1",
-        "@nuxtjs/pwa": "^3.0.0-beta.19",
+        "@nuxtjs/pwa": "^3.0.0-beta.20",
         "@nuxtjs/robots": "^2.4.2",
         "@nuxtjs/sitemap": "^2.0.1",
         "@nuxtjs/toast": "^3.3.0",