feat: Migrate arbitrum-sepolia-testnet from experimental to non-experimental network

[Le-Caignec]

No description provided.

[github-actions]

🐳 Hadolint Dockerfile Lint Results

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Dockerfile:17 DL3016 warning: Pin versions in npm. Instead of `npm install <package>` use `npm install <package>@<version>`

[Copilot]

Pull Request Overview

This PR moves Arbitrum Sepolia (chain ID 421614) from experimental to stable network status by setting isExperimental: false in the network configuration. This change eliminates the need for the allowExperimentalNetworks flag when using this network.

• Updated network configuration to mark Arbitrum Sepolia as a stable (non-experimental) network
• Removed all tests related to the allowExperimentalNetworks flag for Arbitrum Sepolia
• Applied code formatting improvements to template literals in CLI helper

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/common/utils/config.js	Changed isExperimental flag from true to false for Arbitrum Sepolia network
test/lib/unit/config.test.js	Removed test verifying experimental network accessibility with the flag
test/lib/e2e/utils.test.js	Removed test for creating signers on experimental networks
test/lib/e2e/IExecConfig.test.js	Removed two test suites validating experimental network behavior with chain name and chain ID
src/cli/utils/cli-helper.js	Simplified template literal formatting for task status messages

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[PierreJeanjacquot]

@Le-Caignec could you just skip tests related to experimental networks instead of removing them?
The feature code is still present and could be useful next time a network is added it would be nice to have the related tests ready.

[Le-Caignec]

@PierreJeanjacquot yeah no problem. I can do that instead

[sonarqubecloud]

Quality Gate failed

Failed conditions
43.0% Coverage on New Code (required ≥ 80%)
12.3% Duplication on New Code (required ≤ 3%)

See analysis details on SonarQube Cloud

[PierreJeanjacquot]

LGTM