Update hashicorp/setup-terraform action to v3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
hashicorp/setup-terraform	action	major	v2 → v3

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Release Notes

hashicorp/setup-terraform (hashicorp/setup-terraform)

v3

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NOTES:

• Updated default runtime to node20 (#​346)
• The wrapper around the installed Terraform binary has been fixed to return the exact STDOUT and STDERR from Terraform when executing commands. Previous versions of setup-terraform may have required workarounds to process the STDOUT in bash, such as filtering out the first line or selectively parsing STDOUT with jq. These workarounds may need to be adjusted with v3.0.0, which will now return just the STDOUT/STDERR from Terraform with no errant characters/statements. (#​367)

BUG FIXES:

• Fixed malformed stdout when wrapper is enabled (#​367)

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