chore(deps): update dependency build_runner to v2.6.0

Author: renovate[bot]

packages/builder/pubspec.yaml

@@ -18,7 +18,7 @@ dependencies:
   textwrap: ^2.0.0
 
 dev_dependencies:
-  build_runner: 2.5.4
+  build_runner: 2.6.0
   build_test: 3.2.1
   coverage: 1.15.0
   flutter_lints: 6.0.0

pubspec.yaml

@@ -50,7 +50,7 @@ dev_dependencies:
   appainter_builder:
     path: packages/builder
   bloc_test: 10.0.0
-  build_runner: 2.5.4
+  build_runner: 2.6.0
   copy_with_extension_gen: 6.0.1
   flutter_lints: 6.0.0
   flutter_test: