refactor(combos): Rename existing long combo test

This test doesn't test a long combo that completes, but rather one
that's incomplete (so the combo doesn't trigger). Renaming to avoid
confusion when we add more long combo tests.

app/tests/combo/press-release-long-combo-incomplete/native_posix.keymap

@@ -0,0 +1,35 @@
+#include <dt-bindings/zmk/keys.h>
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/kscan-mock.h>
+
+/ {
+	combos {	
+		compatible = "zmk,combos";
+		combo_one {
+			timeout-ms = <80>;
+			key-positions = <0 1 2 3>;
+			bindings = <&kp Z>;
+		};
+	};
+
+	keymap {
+		compatible = "zmk,keymap";
+		label ="Default keymap";
+
+		default_layer {
+			bindings = <
+				&kp A &kp B
+				&kp C &kp D
+			>;
+		};
+	};
+};
+
+&kscan {
+	events = <
+		ZMK_MOCK_PRESS(1,1,10) 
+		ZMK_MOCK_PRESS(0,1,10) 
+		ZMK_MOCK_RELEASE(0,1,100) 
+		ZMK_MOCK_RELEASE(1,1,100)
+	>;
+};