Bump rubocop from 1.75.2 to 1.75.3 in the rubocop group (#689)

* Bump rubocop from 1.75.2 to 1.75.3 in the rubocop group

Bumps the rubocop group with 1 update: [rubocop](https://github.com/rubocop/rubocop).


Updates `rubocop` from 1.75.2 to 1.75.3
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v1.75.2...v1.75.3)

---
updated-dependencies:
- dependency-name: rubocop
  dependency-version: 1.75.3
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: rubocop
...

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

* Update gemset.nix

* Update rubocop config

* Run `lint:fix`

* Simplify assertion

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: robbe[bot] <bot@robbevp.be>
Co-authored-by: Robbe Van Petegem <git@robbevp.be>

Author: 3 people

.rubocop.yml

@@ -1,4 +1,4 @@
-require: 
+plugins: 
   - rubocop-minitest
   - rubocop-rails
   - rubocop-performance

Gemfile.lock

@@ -199,8 +199,8 @@ GEM
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     pagy (9.3.4)
-    parallel (1.26.3)
-    parser (3.3.7.4)
+    parallel (1.27.0)
+    parser (3.3.8.0)
       ast (~> 2.4.1)
       racc
     pg (1.5.9)
@@ -270,7 +270,7 @@ GEM
     reline (0.6.0)
       io-console (~> 0.5)
     rexml (3.4.1)
-    rubocop (1.75.2)
+    rubocop (1.75.3)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.1.0)
@@ -281,7 +281,7 @@ GEM
       rubocop-ast (>= 1.44.0, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 4.0)
-    rubocop-ast (1.44.0)
+    rubocop-ast (1.44.1)
       parser (>= 3.3.7.2)
       prism (~> 1.4)
     rubocop-minitest (0.38.0)

gemset.nix

@@ -104,8 +104,7 @@ class SubscriptionsControllerTest < ActionDispatch::IntegrationTest
     post mark_all_as_read_subscription_url(@subscription)
 
     assert_redirected_to subscription_url(@subscription)
-
-    assert_equal((Array.new(5) { true }), (entries.map { |it| it.reload.read? }))
+    assert(entries.all? { |it| it.reload.read? })
   end
 
   # Destroy