fix: fix last updated date for web3js (#54)

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# Description

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in this PR. -->
change the `last updated` date to aug

## Linked Issues

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## Additional context

content/tutorials/guide-web3js/_dir.yml

@@ -17,7 +17,7 @@ what_you_will_learn:
   - How to setup a Web3.js project using ZKsync CLI
   - How to install Web3.js and the ZKsync plugin in an existing project
   - How to send RPC requests to ZKsync
-updated: 2024-05-09
+updated: 2024-08-29
 tools:
   - Web3.js
   - ZKsync CLI