feat(io/ioutil): replace io/ioutil

[XdpCs]

Checklist:

Important

Please review the checklist below before submitting your pull request.

• Please open an issue before creating a PR or link to an existing issue
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas

Description

Describe the big picture of your changes here to communicate to the maintainers why we should accept this pull request. If it fixes a bug or resolves a feature request, be sure to link to that issue. Close issue syntax: Fixes #<issue number>, see documentation for more details.

Fixes #51

Type of Change

• Bug fix
• New feature
• Documentation update
• Enhancement, including but not limited to code refactoring, performance optimization, Test and CI
• Dependency upgrade

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 8 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
client/flink_client.go	0.00%	3 Missing ⚠️
client/flink_ui_client.go	0.00%	2 Missing ⚠️
client/chatGPT_client.go	0.00%	1 Missing ⚠️
client/gemini_client.go	0.00%	1 Missing ⚠️
client/network_chains.go	0.00%	1 Missing ⚠️

Files with missing lines	Coverage Δ
client/chatGPT_client.go	0.00% <0.00%> (ø)
client/gemini_client.go	0.00% <0.00%> (ø)
client/network_chains.go	0.00% <0.00%> (ø)
client/flink_ui_client.go	0.00% <0.00%> (ø)
client/flink_client.go	0.00% <0.00%> (ø)

... and 1 file with indirect coverage changes