Bump rails from 55f4a62 to 7f6714e

Bumps [rails](https://github.com/rails/rails) from `55f4a62` to `7f6714e`.
- [Release notes](https://github.com/rails/rails/releases)
- [Commits](55f4a62638...7f6714ed18)

---
updated-dependencies:
- dependency-name: rails
  dependency-type: direct:production
...

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

Gemfile.lock

@@ -1,6 +1,6 @@
 GIT
   remote: https://github.com/rails/rails.git
-  revision: 55f4a62638b6c8319bfd276d9d2d7b1adb0a6d71
+  revision: 7f6714ed182d3d8968f580a60cbaabe7a3b45463
   branch: 7-1-stable
   specs:
     actioncable (7.1.1)
@@ -115,7 +115,7 @@ GEM
       public_suffix (>= 2.0.2, < 6.0)
     amq-protocol (2.3.2)
     ast (2.4.2)
-    base64 (0.1.1)
+    base64 (0.2.0)
     bcrypt (3.1.19)
     better_errors (2.10.1)
       erubi (>= 1.0.0)
@@ -166,14 +166,14 @@ GEM
       activerecord (>= 5.a)
       database_cleaner-core (~> 2.0.0)
     database_cleaner-core (2.0.1)
-    date (3.3.3)
+    date (3.3.4)
     debug_inspector (1.1.0)
     diff-lcs (1.5.0)
     docile (1.4.0)
     docker-api (2.2.0)
       excon (>= 0.47.0)
       multi_json
-    drb (2.1.1)
+    drb (2.2.0)
       ruby2_keywords
     erubi (1.12.0)
     eventmachine (1.2.7)
@@ -289,7 +289,7 @@ GEM
       net-protocol
     net-pop (0.1.2)
       net-protocol
-    net-protocol (0.2.1)
+    net-protocol (0.2.2)
       timeout
     net-smtp (0.4.0)
       net-protocol
@@ -390,7 +390,7 @@ GEM
     rdoc (6.6.0)
       psych (>= 4.0.0)
     regexp_parser (2.8.2)
-    reline (0.3.9)
+    reline (0.4.0)
       io-console (~> 0.5)
     rexml (3.2.6)
     rouge (4.2.0)
@@ -519,7 +519,7 @@ GEM
       execjs (>= 0.3.0, < 3)
     thor (1.3.0)
     tilt (2.3.0)
-    timeout (0.4.0)
+    timeout (0.4.1)
     tubesock (0.2.9)
       rack (>= 1.5.0)
       websocket (>= 1.1.0)