development-dependency: bump hashicorp/helm from 2.3.0 to 2.4.0 in /terraform

Bumps hashicorp/helm from 2.3.0 to 2.4.0.

Release notes

Sourced from hashicorp/helm's releases.

v2.4.0

• Update helm dependency to v3.7.1
• Add wait support to helm_release delete operation

Changelog

Sourced from hashicorp/helm's changelog.

2.4.0 (November 08, 2021)

• Upgrade helm to 3.7.1

Commits

• 73b5c41 v2.4.0
• afc133c Update CHANGELOG.md
• 458cdbb Upgrade Helm to 3.7.1 (#786)
• 82fe05d Fix replace attribute documentation
• 4640363 Minor fixes to README.md
• See full diff in compare view

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