Updating recommended extensions list. (#13645)

### Description

Updating recommended extensions.

### Contribution Checklist

<!-- Before submitting this PR, please make sure: -->

- [ ] The code builds clean without any errors or warnings
- [ ] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [ ] All unit tests pass, and I have added new tests where possible
- [ ] I didn't break anyone 😄

Co-authored-by: alliscode <bentho@microsoft.com>

Author: alliscode

.vscode/extensions.json

@@ -8,7 +8,7 @@
     "esbenp.prettier-vscode",
     "dbaeumer.vscode-eslint",
     "ms-semantic-kernel.semantic-kernel",
-    "ms-java.vscode-java-pack",
+    "vscjava.vscode-java-pack",
     "ms-azuretools.vscode-dapr"
   ]
 }