chore: bump lib and example apps to react-native@0.86.0 (#4125)

## Description

Bumps example apps (FabricExample, TVOSExample) and lib to
`react-native@0.86.0`. Bumps `reanimated`, `worklets` and
`gesture-handler` where applicable.

Closes
software-mansion/react-native-screens-labs#1503.

## Changes

- bump `react-native` to `0.86.0` for lib and `FabricExample`
(`react-native-tvos` is still at rc.3)
- bump `react-native-gesture-handler` to `3.0.1`
- bump `react-native-reanimated` and `react-native-worklets` to
`4.5.0-nightly-20260531-e6a8526c5` and
`0.10.0-nightly-20260531-e6a8526c5` respectively
- keep older version for lib to avoid TS problems - should be resolved
separately
- add `.ruby-version` to `TVOSExample` (according to
#3727 it is
necessary to use lower version, cc @sgaczol)

## Before & after - visual documentation

N/A

## Test plan

Run basic Stack v4 test screens & Tabs smoke tests both on Android and
iOS. Verified build on Android TV and tvOS.

## Checklist

- [ ] Ensured that CI passes

Author: kligarski

FabricExample/ios/FabricExample.xcodeproj/project.pbxproj

@@ -418,6 +418,7 @@
 					"$(inherited)",
 					" ",
 				);
+				PODFILE_DIR = "$(SRCROOT)";
 				REACT_NATIVE_PATH = "${PODS_ROOT}/../../node_modules/react-native";
 				SDKROOT = iphoneos;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = "$(inherited) DEBUG";
@@ -511,6 +512,7 @@
 					"$(inherited)",
 					" ",
 				);
+				PODFILE_DIR = "$(SRCROOT)";
 				REACT_NATIVE_PATH = "${PODS_ROOT}/../../node_modules/react-native";
 				SDKROOT = iphoneos;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = RNS_DEBUG_LOGGING;