fix: withSpring color properties flickering

[patrycjakalinska]

Summary

This PR addresses an issue where color-based properties (backgroundColor, boxShadow) were causing flickering when used with withSpring animations. The root cause of the flickering was RGBA values going below 0, resulting in NaN values.

I introduced clampRGBA function that guards values within given limits.

Before:

Screen.Recording.2024-12-16.at.11.14.39.mov

After:

Screen.Recording.2024-12-16.at.11.15.03.mov

Test plan

Paste this code to EmptyExample - it should work on both Paper and Fabric:

EmptyExample code

import { Text, StyleSheet, View, Pressable } from 'react-native';
import React from 'react';
import Animated, {
  useSharedValue,
  withSpring,
  useAnimatedStyle,
} from 'react-native-reanimated';

export default function EmptyExample() {
  const pressed = useSharedValue(false);
  const animatedStyle = useAnimatedStyle(() => {
    return {
      backgroundColor: withSpring(pressed.value ? 'blue' : 'red'),
    };
  });

  return (
    <View>
      <Animated.View style={[styles.box, animatedStyle]} />
      <Pressable
        onPress={() => {
          pressed.value = !pressed.value;
        }}>
        <Text>Press me</Text>
      </Pressable>
    </View>
  );
}

const styles = StyleSheet.create({
  box: {
    width: 50,
    height: 50,
  },
});