Bump rpush from 8.0.0 to 9.0.0

Bumps [rpush](https://github.com/rpush/rpush) from 8.0.0 to 9.0.0.
- [Release notes](https://github.com/rpush/rpush/releases)
- [Changelog](https://github.com/rpush/rpush/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rpush/rpush/compare/v8.0.0...v9.0.0)

---
updated-dependencies:
- dependency-name: rpush
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Gemfile.lock

@@ -232,7 +232,7 @@ GEM
       csv
       mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
-    i18n (1.14.5)
+    i18n (1.14.6)
       concurrent-ruby (~> 1.0)
     i18n-js (4.0.0)
       glob
@@ -296,7 +296,7 @@ GEM
     nested_form (0.3.2)
     net-http (0.4.1)
       uri
-    net-http-persistent (4.0.2)
+    net-http-persistent (4.0.4)
       connection_pool (~> 2.2)
     net-http2 (0.18.5)
       http-2 (~> 0.11)
@@ -397,8 +397,8 @@ GEM
     rolify (6.0.1)
     rotp (6.3.0)
     rouge (4.1.3)
-    rpush (8.0.0)
-      activesupport (>= 5.2, < 7.1.0)
+    rpush (9.0.0)
+      activesupport (>= 6.0, < 7.1.0)
       googleauth
       jwt (>= 1.5.6)
       multi_json (~> 1.0)