Assign new handlerTag each time handler is created (#3453)

## Description

A while ago we fixed a problem where Gesture Handler was crashing on `StrictMode`. However, it seems to have broken old API.

>[!TIP]
> Check [this PR](#3247) for context

### Problem

The problem lies in difference between old and new API. In new API, anytime handler is created, it is assigned new `handlerTag`. So in `StrictMode`, we would have the following order:

```
attach 1
drop 1
attach 2
```

Basically handler with tag `1` was created, then dropped, and new handler took its place. 

When old API is used, `handlerTag` stays the same. However, because we do not reattach handler if given tag has been dropped, second attach effectively doesn't work.

### Solution

In order to fix that, we assign new `handlerTag` each time `createGestureHandler` is created, Therefore logic with `droppedHandlers` is the same in case of both APIs.

Fixes #3450

## Test plan

Tested on the code from linked issue

Author: m-bert

src/handlers/createHandler.tsx

@@ -186,7 +186,7 @@ export default function createHandler<
     static displayName = name;
     static contextType = GestureHandlerRootViewContext;
 
-    private handlerTag: number;
+    private handlerTag = -1;
     private config: Record<string, unknown>;
     private propsRef: React.MutableRefObject<unknown>;
     private isMountedRef: React.MutableRefObject<boolean | null>;
@@ -196,7 +196,6 @@ export default function createHandler<
 
     constructor(props: T & InternalEventHandlers) {
       super(props);
-      this.handlerTag = getNextHandlerTag();
       this.config = {};
       this.propsRef = React.createRef();
       this.isMountedRef = React.createRef();
@@ -329,6 +328,7 @@ export default function createHandler<
     private createGestureHandler = (
       newConfig: Readonly<Record<string, unknown>>
     ) => {
+      this.handlerTag = getNextHandlerTag();
       this.config = newConfig;
 
       RNGestureHandlerModule.createGestureHandler(