Update testcases for OneShot plugin

Signed-off-by: Michael Richters <gedankenexperimenter@gmail.com>

tests/issues/896/sketch.json

@@ -0,0 +1,6 @@
+{
+  "cpu": {
+    "fqbn": "keyboardio:virtual:model01",
+    "port": ""
+  }
+}

tests/plugins/OneShot/basic/test.ktest

@@ -15,7 +15,7 @@ EXPECT keyboard-report Key_LeftShift # The report should contain `shift`
 RUN 5 ms
 RELEASE OS_shift
 RUN 45 ms
-RUN 2 cycles
+RUN 1 cycle
 EXPECT keyboard-report empty # Report should be empty
 
 # ==============================================================================
@@ -32,7 +32,6 @@ RUN 10 ms
 PRESS A
 RUN 1 cycle
 EXPECT keyboard-report Key_LeftShift Key_A # There should be `shift`+`A`
-RUN 2 cycle
 EXPECT keyboard-report Key_A # There should be only `A`
 RUN 5 ms
 RELEASE A