Establish release CI matrix (#99)

crates/libremetaverse/tests/packet_catalog.rs

@@ -104,9 +104,9 @@ fn generated_constructors_initialize_blocks_headers_and_sizing_metadata() {
 
     let ack = PacketAckPacket::new_with_constructor().unwrap();
     assert!(ack.packets.is_empty());
-    // The source generator includes one variable-block metadata byte in the
-    // base and one in the block contribution; preserve that exact Length API.
-    assert_eq!(ack.length(), 12);
+    // The low-frequency header contributes ten bytes and the empty variable
+    // block contributes its single count byte.
+    assert_eq!(ack.length(), 11);
     assert!(!ack.uses_buffer_pooling());
 
     let circuit = UseCircuitCodePacket::new_with_constructor().unwrap();