feat: Add Terraform version `1.9.7` (#96) #375

Job	Run time
check	1m 12s
build (macos-13)	4m 13s
build (macos-latest)	2m 0s
build (ubuntu-latest)	50s
template (config, nix flake metadata)	9s
template (default, nix develop --accept-flake-config --impure -c terraform --version)	54s
template (devenv, nix develop --accept-flake-config --impure -c terraform --version)	5m 33s
template (terranix, nix develop --accept-flake-config --impure -c terraform --version)	44s
	15m 35s

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