Update dependency rspec-rails to v8.0.2 (mastodon#35750)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Gemfile.lock

@@ -749,7 +749,7 @@ GEM
     rspec-mocks (3.13.5)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
-    rspec-rails (8.0.1)
+    rspec-rails (8.0.2)
       actionpack (>= 7.2)
       activesupport (>= 7.2)
       railties (>= 7.2)