chore: add brand_yml to dev dependencies too

Author: gadenbuie

pyproject.toml

@@ -54,7 +54,7 @@ dependencies = [
 [project.optional-dependencies]
 theme = [
     "libsass>=0.23.0",
-    "brand_yml"
+    "brand_yml>=0.1.0rc5"
 ]
 test = [
     "pytest>=6.2.4",
@@ -103,6 +103,7 @@ dev = [
     "Flake8-pyproject>=1.2.3",
     "isort>=5.10.1",
     "libsass>=0.23.0",
+    "brand_yml>=0.1.0rc5",
     "pyright>=1.1.383",
     "pre-commit>=2.15.0",
     "wheel",