Minor linter fixes (#2936)

* Lint the first source

* Bump pure-eval for testing

* Restore pure-eval

Author: IsabelParedes

.github/workflows/build_recipes.yaml

@@ -51,7 +51,6 @@ jobs:
 
   build_recipes:
     runs-on: ubuntu-latest
-    needs: lint_recipes
     env:
       TARGET_PLATFORM: emscripten-wasm32
       GITHUB_OWNER: "emscripten-forge"

emci/__main__.py

@@ -95,6 +95,8 @@ def lint(old: str, new: str):
             try:
                 with open(meta_path) as f:
                     meta = yaml.safe_load(f)
+                if isinstance(meta.get('source'), list):
+                    meta['source'] = meta['source'][0]
             except Exception as e:
                 print(f"❌ Failed to parse {meta_path}: {e}")
                 failed = True