Bump strong_migrations from 0.7.9 to 0.8.0 (#16534)

Bumps [strong_migrations](https://github.com/ankane/strong_migrations) from 0.7.9 to 0.8.0.
- [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/v0.7.9...v0.8.0)

---
updated-dependencies:
- dependency-name: strong_migrations
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

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

Gemfile

@@ -102,7 +102,7 @@ gem "sprockets", "~> 4.0" # Sprockets is a Rack-based asset packaging system
 gem "staccato", "~> 0.5" # Ruby Google Analytics Measurement
 gem "sterile", "~> 1.0" # Transliterate Unicode and Latin1 text to 7-bit ASCII for URLs
 gem "stripe", "~> 5.43" # Ruby library for the Stripe API
-gem "strong_migrations", "~> 0.7" # Catch unsafe migrations
+gem "strong_migrations", "~> 0.8" # Catch unsafe migrations
 gem "twitter", "~> 7.0" # A Ruby interface to the Twitter API
 gem "uglifier", "~> 4.2" # Uglifier minifies JavaScript files
 gem "validate_url", "~> 1.0" # Library for validating urls in Rails

Gemfile.lock

@@ -815,8 +815,8 @@ GEM
       dante (>= 0.2.0)
       multi_json (~> 1.0)
       stripe (> 5, < 6)
-    strong_migrations (0.7.9)
-      activerecord (>= 5)
+    strong_migrations (0.8.0)
+      activerecord (>= 5.2)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
     test-prof (1.0.7)
@@ -1031,7 +1031,7 @@ DEPENDENCIES
   sterile (~> 1.0)
   stripe (~> 5.43)
   stripe-ruby-mock (= 3.1.0.rc3)
-  strong_migrations (~> 0.7)
+  strong_migrations (~> 0.8)
   test-prof (~> 1.0)
   timecop (~> 0.9)
   twitter (~> 7.0)