Bump addressable from 2.5.2 to 2.8.0 in /example_app

Bumps [addressable](https://github.com/sporkmonger/addressable) from 2.5.2 to 2.8.0.
- [Release notes](https://github.com/sporkmonger/addressable/releases)
- [Changelog](https://github.com/sporkmonger/addressable/blob/main/CHANGELOG.md)
- [Commits](sporkmonger/addressable@addressable-2.5.2...addressable-2.8.0)

---
updated-dependencies:
- dependency-name: addressable
  dependency-type: indirect
...

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

Author: dependabot[bot]

example_app/Gemfile.lock

@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     capybara (2.15.1)
       addressable
       mini_mime (>= 0.1.3)
@@ -15,8 +15,23 @@ GEM
       minitest (>= 4)
     cf-app-utils (0.6)
     coderay (1.1.2)
-    faraday (0.13.1)
+    faraday (1.5.1)
+      faraday-em_http (~> 1.0)
+      faraday-em_synchrony (~> 1.0)
+      faraday-excon (~> 1.1)
+      faraday-httpclient (~> 1.0.1)
+      faraday-net_http (~> 1.0)
+      faraday-net_http_persistent (~> 1.1)
+      faraday-patron (~> 1.0)
       multipart-post (>= 1.2, < 3)
+      ruby2_keywords (>= 0.0.4)
+    faraday-em_http (1.0.0)
+    faraday-em_synchrony (1.0.0)
+    faraday-excon (1.1.0)
+    faraday-httpclient (1.0.1)
+    faraday-net_http (1.0.1)
+    faraday-net_http_persistent (1.2.0)
+    faraday-patron (1.0.0)
     ffi (1.15.0)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
@@ -29,7 +44,7 @@ GEM
     minitest (5.10.3)
     mocha (1.3.0)
       metaclass (~> 0.0.1)
-    multipart-post (2.0.0)
+    multipart-post (2.1.1)
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
     nokogiri (1.11.4)
@@ -40,7 +55,7 @@ GEM
     pry (0.11.1)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    public_suffix (3.0.0)
+    public_suffix (4.0.6)
     racc (1.5.2)
     rack (2.2.3)
     rack-flash3 (1.0.5)
@@ -57,9 +72,9 @@ GEM
       listen (~> 3.0)
     ruby2_keywords (0.0.4)
     ruby_dep (1.5.0)
-    sawyer (0.8.1)
-      addressable (>= 2.3.5, < 2.6)
-      faraday (~> 0.8, < 1.0)
+    sawyer (0.8.2)
+      addressable (>= 2.3.5)
+      faraday (> 0.8, < 2.0)
     sinatra (2.0.2)
       mustermann (~> 1.0)
       rack (~> 2.0)