feat(workspace): add auto destroy activity duration

[notchairmk]

Description

Adds auto_destroy_activity_duration to the tfe_workspace resource.

Requires #1378

Remember to:

• Update the Change Log
• Update the Documentation

Testing plan

1. create a workspace resource with auto_destroy_activity_duration
   • example from test:

   resource "tfe_workspace" "foobar" {
     name                           = "workspace-test"
     organization                   = tfe_organization.foobar.id
     auto_apply                     = true
     file_triggers_enabled           = false
     auto_destroy_activity_duration = "1d"
   }
   

2. apply configuration
3. confirm that there are no pending changes on subsequent applies

External links

Include any links here that might be helpful for people reviewing your PR. If there are none, feel free to delete this section.

• API documentation
• Related PR

Output from acceptance tests

Please run applicable acceptance tests locally and include the output here. See testing.md to learn how to run acceptance tests.

If you are an external contributor, your contribution(s) will first be reviewed before running them against the project's CI pipeline.

$ TFE_HOSTNAME=<hostname> TFE_TOKEN=<token> TESTARGS='-run "TestAccTFEWorkspace(DataSource)?_(create|update|read)(With)?AutoDestroy(At|Duration)"' make testacc
TF_ACC=1 TF_LOG_SDK_PROTO=OFF go test $(go list ./... |grep -v 'vendor') -v -run "TestAccTFEWorkspace(DataSource)?_(create|update|read)(With)?AutoDestroy(At|Duration)" -timeout 15m
?   	github.com/hashicorp/terraform-provider-tfe	[no test files]
testing: warning: no tests to run
PASS
ok  	github.com/hashicorp/terraform-provider-tfe/internal/client	0.205s [no tests to run]
testing: warning: no tests to run
PASS
ok  	github.com/hashicorp/terraform-provider-tfe/internal/logging	0.269s [no tests to run]
?   	github.com/hashicorp/terraform-provider-tfe/internal/provider/validators	[no test files]
?   	github.com/hashicorp/terraform-provider-tfe/version	[no test files]
=== RUN   TestAccTFEWorkspaceDataSource_readAutoDestroyAt
--- PASS: TestAccTFEWorkspaceDataSource_readAutoDestroyAt (9.94s)
=== RUN   TestAccTFEWorkspaceDataSource_readAutoDestroyDuration
--- PASS: TestAccTFEWorkspaceDataSource_readAutoDestroyDuration (9.72s)
=== RUN   TestAccTFEWorkspace_createWithAutoDestroyAt
--- PASS: TestAccTFEWorkspace_createWithAutoDestroyAt (6.47s)
=== RUN   TestAccTFEWorkspace_updateWithAutoDestroyAt
--- PASS: TestAccTFEWorkspace_updateWithAutoDestroyAt (10.93s)
=== RUN   TestAccTFEWorkspace_createWithAutoDestroyDuration
--- PASS: TestAccTFEWorkspace_createWithAutoDestroyDuration (5.22s)
=== RUN   TestAccTFEWorkspace_updateWithAutoDestroyDuration
--- PASS: TestAccTFEWorkspace_updateWithAutoDestroyDuration (13.36s)
PASS
ok  	github.com/hashicorp/terraform-provider-tfe/internal/provider	56.030s

[notchairmk]

Unfortunately most of the raw config/state checking in this PR is due to this value being changed to computed. The main problem is insuring that unsetting auto_destroy_at (when auto_destroy_activity_duration is also unset) sends a null value to the TFC API.

[jfreda]

Overall looking good so far! I'm going to take it for a test run and will report back.

[emailnitram]

should be

Suggested change

	ValidateFunc: validation.StringMatch(regexp.MustCompile(`^\d{1,5}[dh]$`), "must be 1-5 digits followed by d or h"),
	ValidateFunc: validation.StringMatch(regexp.MustCompile(`^\d{1,4}[dh]$`), "must be 1-4 digits followed by d or h"),

[emailnitram]

edge case but 0d or 0h seems to be a valid value but fails when trying to apply

[notchairmk]

edge case but 0d or 0h seems to be a valid value but fails when trying to apply

validation is mostly an additional nice-to-have to give the user early feedback. I'm fine with the logic here not needing to 100% match the business logic in the API, since it's an edge case

[emailnitram]

functionality looks good. tested and working as intended