Add terraform provider for juju smoke workflow.

Ensure that we test apiserver changes for 2.9 and 3.x against the
lastest terraform provider for juju release.

.github/workflows/terraform-tests.yml

@@ -0,0 +1,94 @@
+name: "Terraform Smoke"
+on:
+  push:
+    branches: [2.9, 3.1, 3.2, 3.3]
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
+  paths:
+    - 'apiserver/**.go'
+    - 'go.mod'
+    - '.github/workflows/terraform-tests.yml'
+  branches-ignore:
+    - 'main'
+
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+
+  smoke:
+    name: Terraform Smoke
+    runs-on: [self-hosted, linux, x64, aws, xlarge]
+    if: github.event.pull_request.draft == false
+    steps:
+
+    - name: Install Dependencies
+      shell: bash
+      run: |
+        set -euxo pipefail
+        echo "/snap/bin" >> $GITHUB_PATH
+        sudo DEBIAN_FRONTEND=noninteractive apt install -y expect
+
+    - name: Checkout juju
+      uses: actions/checkout@v3
+
+    - name: Setup LXD
+      uses: canonical/setup-lxd@4e959f8e0d9c5feb27d44c5e4d9a330a782edee0
+
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version-file: 'go.mod'
+        cache: true
+
+    - name: setup env
+      shell: bash
+      run: |
+        echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
+        echo "$(go env GOPATH)/bin" >> $GITHUB_PATH
+
+    - name: Install local Juju
+      shell: bash
+      run: |
+        make go-install
+
+    - name: Bootstrap Juju - localhost
+      shell: bash
+      run: |
+        set -euxo pipefail
+            
+        juju bootstrap localhost c \
+              --constraints "arch=$(go env GOARCH)"
+        juju version
+
+    - name: Checkout terraform provider for juju latest release
+      uses: actions/checkout@v3
+      with:
+        repository: 'github.com/juju/terraform-provider-juju'
+        ref: ''
+        #path: terraform-provider-juju
+        fetch-depth: 0
+      run: |
+        LATEST_TAG=$(git describe --tags `git rev-list --tags --max-count=1`)
+        git checkout $LATEST_TAG
+
+    - name: Set environment to configure provider for test
+      run: |
+        CONTROLLER=$(juju whoami --format yaml | yq .controller)
+        echo "JUJU_CONTROLLER_ADDRESSES=$(juju show-controller | yq .$CONTROLLER.details.api-endpoints | yq -r '. | join(",")')" >> $GITHUB_ENV
+        echo "JUJU_USERNAME=$(juju show-controller | yq .$CONTROLLER.account.user)"  >> $GITHUB_ENV
+        echo "JUJU_PASSWORD=$(cat ~/.local/share/juju/accounts.yaml | yq .controllers.$CONTROLLER.password)"  >> $GITHUB_ENV
+        echo "JUJU_CA_CERT<<EOF" >> $GITHUB_ENV
+        juju show-controller | yq .$CONTROLLER.details.ca-cert >> $GITHUB_ENV
+        echo "EOF" >> $GITHUB_ENV
+
+    - name: Run terraform provider for juju ACC tests
+      shell: bash
+      env:
+        TF_ACC: "1"
+        TEST_CLOUD: lxd
+      run: |
+        go mod download
+        go test -timeout 40m -v -cover ./internal/provider/