Bump rpush from 3.0.2 to 4.0.0

Bumps [rpush](https://github.com/rpush/rpush) from 3.0.2 to 4.0.0.
- [Release notes](https://github.com/rpush/rpush/releases)
- [Changelog](https://github.com/rpush/rpush/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rpush/rpush/commits)

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile.lock

@@ -156,8 +156,8 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.1.3)
-    connection_pool (2.2.1)
+    concurrent-ruby (1.1.4)
+    connection_pool (2.2.2)
     cookies_eu (1.7.1)
       js_cookie_rails (~> 2.2.0)
     crass (1.0.4)
@@ -182,7 +182,7 @@ GEM
       dotenv (= 2.4.0)
       railties (>= 3.2, < 6.0)
     ejs (1.1.1)
-    erubi (1.7.1)
+    erubi (1.8.0)
     et-orbi (1.1.0)
       tzinfo
     execjs (2.7.0)
@@ -206,10 +206,10 @@ GEM
       activesupport (>= 4.2.0)
     globalize-accessors (0.2.1)
       globalize (~> 5.0, >= 5.0.0)
-    http-2 (0.8.4)
+    http-2 (0.9.0)
     http-cookie (1.0.3)
       domain_name (~> 0.5)
-    i18n (1.1.1)
+    i18n (1.5.3)
       concurrent-ruby (~> 1.0)
     icalendar (2.4.1)
     jquery-rails (4.3.3)
@@ -225,6 +225,7 @@ GEM
       railties (>= 3.1)
     json (2.1.0)
     jsonapi-renderer (0.1.2)
+    jwt (2.1.0)
     kaminari (0.17.0)
       actionpack (>= 3.0.0)
       activesupport (>= 3.0.0)
@@ -252,8 +253,8 @@ GEM
     multi_json (1.13.1)
     net-http-persistent (3.0.0)
       connection_pool (~> 2.2)
-    net-http2 (0.16.0)
-      http-2 (= 0.8.4)
+    net-http2 (0.18.0)
+      http-2 (= 0.9.0)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
     net-ssh (5.0.1)
@@ -334,7 +335,7 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (12.3.1)
+    rake (12.3.2)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -363,9 +364,10 @@ GEM
     routing-filter (0.6.1)
       actionpack (>= 4.2, < 5.2)
       activesupport (>= 4.2, < 5.2)
-    rpush (3.0.2)
+    rpush (4.0.0)
       activesupport
       ansi
+      jwt (>= 1.5.6)
       multi_json (~> 1.0)
       net-http-persistent
       net-http2 (~> 0.14)