fix(eventstore): use decimal, correct mirror (#9905)

back port #9812, #9878, #9881, #9884

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Co-authored-by: Livio Spring <livio.a@gmail.com>
Co-authored-by: Stefan Benz <46600784+stebenz@users.noreply.github.com>

internal/execution/execution_test.go

@@ -61,7 +61,7 @@ func Test_Call(t *testing.T) {
 			args{
 				ctx:        context.Background(),
 				timeout:    time.Second,
-				sleep:      time.Second,
+				sleep:      2 * time.Second,
 				method:     http.MethodPost,
 				body:       []byte("{\"request\": \"values\"}"),
 				respBody:   []byte("{\"response\": \"values\"}"),