fix: correct Discord role name

[qubelabsio]

Note

Low Risk
Documentation-only change that updates external links/role names with no runtime or behavioral impact.

Overview
Updates the Amplifier chain integration guide to point to the current Axelar Discord invite link and corrects the required Discord role from Developer to Axelar Builder for requesting devnet faucet funds.

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[greptile-apps]

Greptile Summary

Updated the Amplifier chain integration guide to reflect current Axelar Discord infrastructure. The changes include:

• Updated Discord invite link from https://discord.gg/aRZ3Ra6f7D to https://discord.com/invite/axelar (canonical invite URL)
• Corrected the required Discord role from "Developer" to "Axelar Builder" for devnet faucet access

This is a low-risk documentation update that ensures developers following the integration guide receive accurate instructions for accessing devnet resources.

Confidence Score: 5/5

• This PR is completely safe to merge with zero risk
• Documentation-only change that updates external links and role names. No code changes, no runtime impact, and the updates appear to correct outdated Discord information to match current infrastructure
• No files require special attention

Important Files Changed

Filename	Overview
src/content/docs/dev/amplifier/chain-integration/integrate-a-chain.mdx	Updated Discord invite link and corrected role name from Developer to Axelar Builder - documentation-only change with no technical issues

_{Last reviewed commit: 0f4077b}