Build contributed recipes on aarch64 (#1974)

* Build contributed recipes on aarch64

* Add --pull to contributed recipes

* Exclude recipe not working on aarch64

docs/using/recipe_code/generate_matrix.py

@@ -10,7 +10,11 @@ THIS_DIR = Path(__file__).parent.resolve()
 
 def generate_matrix() -> dict[str, Any]:
     dockerfiles = sorted(file.name for file in THIS_DIR.glob("*.dockerfile"))
-    return {"dockerfile": dockerfiles}
+    return {
+        "dockerfile": dockerfiles,
+        "runsOn": ["ubuntu-latest", "ARM64"],
+        "exclude": [{"dockerfile": "oracledb.dockerfile", "runsOn": "ARM64"}],
+    }
 
 
 if __name__ == "__main__":