Remove unwrap in filter_http_methods macro

src/error.rs

@@ -12,6 +12,7 @@ pub enum PixivDownloaderError {
     UgoiraError(UgoiraError),
     #[cfg(feature = "server")]
     Hyper(hyper::Error),
+    HTTP(http::Error),
 }
 
 impl From<&str> for PixivDownloaderError {
@@ -20,6 +21,12 @@ impl From<&str> for PixivDownloaderError {
     }
 }
 
+impl From<http::header::InvalidHeaderValue> for PixivDownloaderError {
+    fn from(v: http::header::InvalidHeaderValue) -> Self {
+        Self::HTTP(http::Error::from(v))
+    }
+}
+
 #[macro_export]
 macro_rules! concat_pixiv_downloader_error {
     ($exp1:expr, $exp2:expr) => {