build(deps): bump build_runner from 2.5.4 to 2.7.0 (#117)

Bumps [build_runner](https://github.com/dart-lang/build) from 2.5.4 to 2.7.0.
- [Release notes](https://github.com/dart-lang/build/releases)
- [Commits](dart-lang/build@build_runner-v2.5.4...build_runner-v2.7.0)

---
updated-dependencies:
- dependency-name: build_runner
  dependency-version: 2.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

app/example/pubspec.yaml

@@ -30,7 +30,7 @@ dependencies:
     path: ../../packages/stadata_flutter_sdk
 
 dev_dependencies:
-  build_runner: ^2.5.4
+  build_runner: ^2.7.0
   envied_generator: ^1.1.1
   flutter_lints: ^6.0.0
   flutter_test: