[devdocsgjs/main: 1710/1867] Update dependency ruby to v2.7.3

[Andy Holmes <andyholmes src gnome org>]

commit e4db4c7c9eba929f8890e22bf250175a9fed5c1a
Author: Renovate Bot <bot renovateapp com>
Date:   Wed Jun 9 09:12:05 2021 +0000

    Update dependency ruby to v2.7.3

 .ruby-version | 2 +-
 Dockerfile    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/.ruby-version b/.ruby-version
index 57cf282e..2c9b4ef4 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.6.5
+2.7.3
diff --git a/Dockerfile b/Dockerfile
index dd1302df..281f1ef8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.6.5
+FROM ruby:2.7.3
 
 ENV LANG=C.UTF-8
 ENV ENABLE_SERVICE_WORKER=true