Update Terraform versions in tests (#83)

As 1.7 was released, make sure the module works with it.

.github/workflows/test.yml

@@ -82,9 +82,9 @@ jobs:
       matrix:
         # list whatever Terraform versions here you would like to support
         terraform:
-          - '1.4.*'
           - '1.5.*'
           - '1.6.*'
+          - '1.7.*'
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
       - uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491 # v5.0.0