[RNMobile] Fix path in gutenberg-web-single-block symlink.

[iandunn]

Description

#22714 created packages/react-native-bridge/android/react-native-bridge/src/main/assets/gutenberg-web-single-block, but it looks like the symlink points one folder above where it's intended.

../../../../common/gutenberg-web-single-block       -> packages/react-native-bridge/android/common/gutenberg-web-single-block
../../../../../../common/gutenberg-web-single-block -> packages/react-native-bridge/common/gutenberg-web-single-block

Adding an extra ../ should fix it.

cc @Tug

How has this been tested?

1. git checkout trunk
2. cd packages/react-native-bridge/android/react-native-bridge/src/main/assets
3. ls gutenberg-web-single-block, see error that target doesn't exist
4. git checkout {this branch}
5. ls gutenberg-web-single-block, see that target exists

I haven't tested beyond that, since I'm not familiar with the mobile side of things. I encountered this when trying to test a GitHub workflow locally with https://github.com/nektos/act/, and got an error from Docker when trying to copy the symlink to its temporary folder. The changes in this PR fixed that.

Types of changes

Bug fix (non-breaking change which fixes an issue)

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows the accessibility standards.
• I've tested my changes with keyboard and screen readers.
• My code has proper inline documentation.
• I've included developer documentation if appropriate.
• I've updated all React Native files affected by any refactorings/renamings in this PR (please manually search all *.native.js files for terms that need renaming or removal).

[Tug]

Just noticed the ping here sorry! @hypest do you mind having a look at it?

[jd-alexander]

Thanks for this fix @iandunn these changes will be merged into trunk and also shipped as part of a beta release on top of gutenberg-mobile release 1.50 wordpress-mobile/gutenberg-mobile#3324

I will be running some tests and creating supplementary mobile PRs to verify the fix.

[jd-alexander]

@iandunn I tested the symlink fix and the symlink now functions as expected. I will be creating an additional PR to resolve the referenced issues we discovered otherwise. Thanks again for spotting this. LGTM 🚢