Bump strong_migrations from 0.6.8 to 0.7.1 (#14463)

Bumps [strong_migrations](https://github.com/ankane/strong_migrations) from 0.6.8 to 0.7.1.
- [Release notes](https://github.com/ankane/strong_migrations/releases)
- [Changelog](https://github.com/ankane/strong_migrations/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ankane/strong_migrations/compare/v0.6.8...v0.7.1)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -94,7 +94,7 @@ gem 'simple-navigation', '~> 4.1'
 gem 'simple_form', '~> 5.0'
 gem 'sprockets-rails', '~> 3.2', require: 'sprockets/railtie'
 gem 'stoplight', '~> 2.2.1'
-gem 'strong_migrations', '~> 0.6'
+gem 'strong_migrations', '~> 0.7'
 gem 'tty-prompt', '~> 0.22', require: false
 gem 'twitter-text', '~> 1.14'
 gem 'tzinfo-data', '~> 1.2020'

Gemfile.lock

@@ -601,7 +601,7 @@ GEM
     stoplight (2.2.1)
     streamio-ffmpeg (3.0.2)
       multi_json (~> 1.8)
-    strong_migrations (0.6.8)
+    strong_migrations (0.7.1)
       activerecord (>= 5)
     temple (0.8.2)
     terminal-table (1.8.0)
@@ -778,7 +778,7 @@ DEPENDENCIES
   stackprof
   stoplight (~> 2.2.1)
   streamio-ffmpeg (~> 3.0)
-  strong_migrations (~> 0.6)
+  strong_migrations (~> 0.7)
   thor (~> 0.20)
   thwait (~> 0.2.0)
   tty-prompt (~> 0.22)