ci: add workflow examples with tenv and tofu

.github/workflows/tf_tests.yml

@@ -3,6 +3,10 @@ name: TF Tests
 on:
   pull_request:
     types: [opened, reopened, synchronize, closed]
+    paths:
+      - "**.yml"
+      - "scripts/**"
+      - "tests/**"
 
 jobs:
   tests:
@@ -31,9 +35,15 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
 
-      - name: Setup TF
-        uses: opentofu/setup-opentofu@ae80d4ecaab946d8f5ff18397fbf6d0686c6d46a # v1.0.3
-      - uses: hashicorp/setup-terraform@a1502cd9e758c50496cc9ac5308c4843bcd56d36 # v3.0.0
+      - name: Setup TF (via tenv)
+        env:
+          CLI_USES: ${{ matrix.cli_uses }}
+          CLI_VERSION: ~> 1.6.0
+        run: |
+          VERSION=$(curl --silent https://api.github.com/repos/tofuutils/tenv/releases/latest | jq -r .tag_name)
+          curl -O -L "https://github.com/tofuutils/tenv/releases/latest/download/tenv_${VERSION}_amd64.deb"
+          sudo dpkg -i "tenv_${VERSION}_amd64.deb"
+          tenv $CLI_USES install "$CLI_VERSION" && tenv update-path
 
       - name: Provision TF
         id: tf

README.md

@@ -63,9 +63,10 @@
 Functional workflow examples are provided below, along with associated permissions and triggers. The full list of inputs is documented [below](#inputs).
 
 - [TF via PR Comments](.github/examples/tf_via_pr_comments.yml)
+- [TF via PR Comments or Input](.github/examples/tf_via_pr_comments_or_input.yml)
 - [TF via PR Input with AWS Authentication](.github/examples/tf_via_pr_input.yml)
 - [TF via PR Input with Matrix Strategy](.github/examples/tf_via_pr_input_matrix.yml)
-- [TF via PR Comments or Input](.github/examples/tf_via_pr_comments_or_input.yml)
+- [TF via PR Input with `tenv` Proxy](.github/workflows/tf_tests.yml)
 
 > [!NOTE]
 >