Bump spring from 2.1.1 to 4.0.0

Bumps [spring](https://github.com/rails/spring) from 2.1.1 to 4.0.0.
- [Release notes](https://github.com/rails/spring/releases)
- [Changelog](https://github.com/rails/spring/blob/main/CHANGELOG.md)
- [Commits](rails/spring@v2.1.1...v4.0.0)

---
updated-dependencies:
- dependency-name: spring
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Gemfile

@@ -60,7 +60,7 @@ end
 group :development do
   gem 'travis', '~> 1.8'
   gem 'web-console', '~> 3.3'
-  gem 'spring', '~> 2.1'
+  gem 'spring', '~> 4.0'
 end
 
 # Use ActiveModel has_secure_password

Gemfile.lock

@@ -722,7 +722,7 @@ GEM
     sparql-client (3.0.1)
       net-http-persistent (>= 2.9, < 4)
       rdf (~> 3.0)
-    spring (2.1.1)
+    spring (4.0.0)
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
@@ -842,7 +842,7 @@ DEPENDENCIES
   sdoc (~> 2.2)
   sidekiq (~> 4.2)
   simplecov (~> 0.16)
-  spring (~> 2.1)
+  spring (~> 4.0)
   sqlite3 (~> 1.4)
   therubyracer (~> 0.12)
   thin (~> 1.8)