Support GCS (Google Cloud Storage) as storage for tfmigrate history files

.github/workflows/test-get-target-config.yaml

@@ -29,3 +29,21 @@ jobs:
     - run: echo "${{ steps.target-config.outputs.s3_bucket_name_plan_file }}"
     - run: echo "${{ steps.target-config.outputs.s3_bucket_name_tfmigrate_history }}"
     - run: echo "${{ steps.target-config.outputs.template_dir }}"
+  test-gcp:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: aquaproj/aqua-installer@v1.1.1
+      with:
+        aqua_version: v1.19.2
+    - uses: ./get-target-config
+      id: target-config
+      env:
+        TFACTION_CONFIG: get-target-config/tests/config-1.yaml
+        TFACTION_TARGET: gcp/foo
+        TFACTION_IA_APPLY: 'false'
+        TFACTION_JOB_TYPE: 'terraform'
+    - run: echo "${{ steps.target-config.outputs.working_directory }}"
+    - run: echo "${{ steps.target-config.outputs.gcs_bucket_name_plan_file }}"
+    - run: echo "${{ steps.target-config.outputs.gcs_bucket_name_tfmigrate_history }}"
+    - run: echo "${{ steps.target-config.outputs.template_dir }}"

get-target-config/action.yaml

@@ -20,6 +20,8 @@ outputs:
     description: S3 Bucket name for tfmigrate history files
   gcs_bucket_name_plan_file:
     description: Google Cloud Storage Bucket name for plan files
+  gcs_bucket_name_tfmigrate_history:
+    description: GCS Bucket name for tfmigrate history files
   template_dir:
     description: Template Directory path for scaffolding a working directory