og_image: Clear environment variables for typst subprocess

Author: Turbo87

crates/crates_io_og_image/src/lib.rs

@@ -249,6 +249,7 @@ impl OgImageGenerator {
             .arg(format!("avatar_map={}", json_avatar_map))
             .arg(&typ_file_path)
             .arg(output_file.path())
+            .env_clear()
             .output()
             .await
             .map_err(OgImageError::TypstNotFound)?;