Add webhook already handled check

Fix all tests
Add woodpecker ci (tests + release)

src/api.rs

@@ -58,10 +58,15 @@ async fn webhook(
 ) -> Result<impl IntoResponse, AppError> {
     tracing::Span::current().record("webhook_type", tracing::field::debug(&wb));
 
-    app_state
-        .bot_tx
-        .try_send(wb)
-        .map_err(|_| AppError::ChannelFullErr)?;
+    let event_id = wb.event_id();
+    if app_state.bot.check_and_mark(event_id).await {
+        return Err(AppError::AlreadyProcessedErr);
+    }
+
+    if app_state.bot_tx.try_send(wb).is_err() {
+        app_state.bot.unmark(event_id).await;
+        return Err(AppError::ChannelFullErr);
+    }
 
     Ok((StatusCode::CREATED, "Task started"))
 }