build(deps-dev): bump rubocop-github in the all-dependencies group

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


Updates `rubocop-github` from 0.25.0 to 0.26.0
- [Release notes](https://github.com/github/rubocop-github/releases)
- [Changelog](https://github.com/github/rubocop-github/blob/main/CHANGELOG.md)
- [Commits](github/rubocop-github@v0.25.0...v0.26.0)

---
updated-dependencies:
- dependency-name: rubocop-github
  dependency-version: 0.26.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: all-dependencies
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -29,7 +29,7 @@ GEM
     ast (2.4.3)
     base64 (0.3.0)
     benchmark (0.4.1)
-    bigdecimal (3.2.1)
+    bigdecimal (3.2.2)
     builder (3.3.0)
     concurrent-ruby (1.3.5)
     connection_pool (2.5.3)
@@ -97,8 +97,8 @@ GEM
     rubocop-ast (1.45.1)
       parser (>= 3.3.7.2)
       prism (~> 1.4)
-    rubocop-github (0.25.0)
-      rubocop (>= 1.72)
+    rubocop-github (0.26.0)
+      rubocop (>= 1.76)
       rubocop-performance (>= 1.24)
       rubocop-rails (>= 2.23)
     rubocop-performance (1.25.0)