docs: update compatibility table with react-native 0.81 (#1103)

## 📜 Description

Mention that RN 0.81 is compatible only with `1.18+` lib.

## 💡 Motivation and Context

To clearly indicate that the old version of package is not compatible
with RN 0.81.

## 📢 Changelog

<!-- High level overview of important changes -->
<!-- For example: fixed status bar manipulation; added new types
declarations; -->
<!-- If your changes don't affect one of platform/language below - then
remove this platform/language -->

### Docs

- add RN 0.81 to fabric compatibility;

## 🤔 How Has This Been Tested?

Tested via preview.

## 📸 Screenshots (if appropriate):

<img width="389" height="578" alt="image"
src="https://github.com/user-attachments/assets/424c6ebd-0aec-475f-b6a9-3673ca541015"
/>

## 📝 Checklist

- [x] CI successfully passed
- [x] I added new mocks and corresponding unit-tests if library API was
changed

Author: kirillzyusko

docs/docs/guides/compatibility.md

@@ -25,6 +25,7 @@ Below you can find a table with supported versions:
 
 | library version | react-native version |
 | --------------- | -------------------- |
+| 1.18.0+         | 0.81.0+              |
 | 1.16.0+         | 0.77.0+              |
 | 1.13.0+         | 0.75.0+              |
 | 1.12.0+         | 0.74.0+              |

docs/versioned_docs/version-1.18.0/guides/compatibility.md

@@ -25,6 +25,7 @@ Below you can find a table with supported versions:
 
 | library version | react-native version |
 | --------------- | -------------------- |
+| 1.18.0+         | 0.81.0+              |
 | 1.16.0+         | 0.77.0+              |
 | 1.13.0+         | 0.75.0+              |
 | 1.12.0+         | 0.74.0+              |