fix: update devcontainer.json

[AobaIwaki123]

Description

I fixed the problem in devcontainer.json related to #3170

1. Remove redundant filed

{
	"name": "Youki",
-	"extensions": [
-		"rust-analyzer"
-	],

2. Fix configuration format

-				"rust-analyzer.checkOnSave.command": "clippy"
+				"rust-analyzer.check": {
+					"command": "clippy"
+				}

3. Replace deprecated extension with new one

			"extensions": [
				"vadimcn.vscode-lldb",
				"mutantdino.resourcemonitor",
				"rust-lang.rust-analyzer",
				"tamasfe.even-better-toml",
-				"serayuzgur.crates"
+				"fill-labs.dependi"
			]

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Refactoring (no functional changes)
• Performance improvement
• Test updates
• CI/CD related changes
• Other (please describe):

Testing

• Added new unit tests
• Added new integration tests
• Ran existing test suite
• Tested manually (please provide steps)

Related Issues

Fixes #3170

Additional Context

[utam0k]

Thanks for your first contribution!