Improvement on make install-terraformrc goal

[vcsomor]

Newer go installations don't require setting the GOPATH explicitly.
To make managing the GOHOME more flexible the install-terraformrc and check-go targets have been improved.

[vcsomor]

Newer go installations don't require setting the GOPATH explicitly.
To make managing the GOHOME more flexible the install-terraformrc and check-go targets have been improved.

[github-actions]

Go test coverage: 34.3% for commit 448ca3e

⚠️ 2 of 15 packages have zero coverage.

• github.com/cloudera/terraform-provider-cdp/resources/de
• github.com/cloudera/terraform-provider-cdp/resources/ml

View coverage for all packages

# Package Name                                                                    | Coverage
+ github.com/cloudera/terraform-provider-cdp/cdpacctest                           |    14.3%
+ github.com/cloudera/terraform-provider-cdp/provider                             |    78.7%
+ github.com/cloudera/terraform-provider-cdp/resources/datahub                    |    35.8%
+ github.com/cloudera/terraform-provider-cdp/resources/datalake                   |     8.4%
- github.com/cloudera/terraform-provider-cdp/resources/de                         |     0.0%
+ github.com/cloudera/terraform-provider-cdp/resources/dw/cluster/aws             |    71.9%
+ github.com/cloudera/terraform-provider-cdp/resources/dw/databasecatalog         |    65.8%
+ github.com/cloudera/terraform-provider-cdp/resources/dw/virtualwarehouse/hive   |    77.7%
+ github.com/cloudera/terraform-provider-cdp/resources/dw/virtualwarehouse/impala |    70.2%
+ github.com/cloudera/terraform-provider-cdp/resources/environments               |    42.6%
+ github.com/cloudera/terraform-provider-cdp/resources/iam                        |     2.7%
- github.com/cloudera/terraform-provider-cdp/resources/ml                         |     0.0%
+ github.com/cloudera/terraform-provider-cdp/resources/opdb                       |    25.4%
+ github.com/cloudera/terraform-provider-cdp/utils                                |    57.1%
+ github.com/cloudera/terraform-provider-cdp/utils/test                           |    75.0%