[Aikido] Fix security issue in x/text via minor version upgrade from 0.37.0 to 0.39.0

[aikido-autofix]

Upgrade golang.org/x/text to fix infinite loop DoS vulnerability in norm.Iter when processing invalid UTF-8 bytes.

✅ 1 CVE resolved by this upgrade

This PR will resolve the following CVEs:

Issue	Severity	Description
CVE-2026-56852	HIGH	[golang.org/x/text] A norm.Iter can enter an infinite loop when handling input containing invalid UTF-8 bytes.

🔗 Related Tasks

• https://theplanttokyo.atlassian.net/browse/MAINT-1555

[theplant-ci]

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