GONRG-6047-workload-identity-fails

• added trigger blocks in eds_ingest_download/eds_scheduler_download to fix df-tf-upgrade-release-to-master issue
• renamed variables from OSDU_GCP* to GC_*
• added *.tfvars to .gitignore
• other small changes

examples/simple_osdu/main.tf

@@ -12,7 +12,7 @@
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
-*  limitations under the License. 
+*  limitations under the License.
 */
 
 provider "google" {