[Bug Fix] - azuredevops_git_repository_file- apply for non-project resources fails

[xuzhang3]

All Submissions:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.
• My code follows the code style of this project.
• I ran lint checks locally prior to submission.
• Have you checked to ensure there aren't other open PRs for the same update/change?

What about the current behavior has changed?

Issue Number: #25

Does this introduce a change to go.mod, go.sum or vendor/?

• Yes
• No

Does this introduce a breaking change?

• Yes
• No

Any relevant logs, error output, etc?

(If it’s long, please paste to https://ghostbin.com/ and insert the link here.)

Other information

[xuzhang3]

=== RUN   TestAccProject_DataSource
=== RUN   TestAccProject_DataSource/Get_project_with_id
=== PAUSE TestAccProject_DataSource/Get_project_with_id
=== RUN   TestAccProject_DataSource/Get_project_with_name
=== PAUSE TestAccProject_DataSource/Get_project_with_name
=== CONT  TestAccProject_DataSource/Get_project_with_id
=== CONT  TestAccProject_DataSource/Get_project_with_name
--- PASS: TestAccProject_DataSource (0.00s)
    --- PASS: TestAccProject_DataSource/Get_project_with_id (57.77s)
    --- PASS: TestAccProject_DataSource/Get_project_with_name (58.01s)
=== RUN   TestAccProject_DataSource_ErrorWhenBothNameAndIdSet
=== PAUSE TestAccProject_DataSource_ErrorWhenBothNameAndIdSet
=== RUN   TestAccProject_DataSource_ErrorWhenDescriptionSet
=== PAUSE TestAccProject_DataSource_ErrorWhenDescriptionSet
=== RUN   TestAccProject_CreateAndUpdate
=== PAUSE TestAccProject_CreateAndUpdate
=== RUN   TestAccProject_CreateAndUpdateWithFeatures
=== PAUSE TestAccProject_CreateAndUpdateWithFeatures
=== CONT  TestAccProject_DataSource_ErrorWhenBothNameAndIdSet
=== CONT  TestAccProject_CreateAndUpdate
=== CONT  TestAccProject_CreateAndUpdateWithFeatures
=== CONT  TestAccProject_DataSource_ErrorWhenDescriptionSet
--- PASS: TestAccProject_DataSource_ErrorWhenDescriptionSet (3.00s)
--- PASS: TestAccProject_DataSource_ErrorWhenBothNameAndIdSet (3.41s)
--- PASS: TestAccProject_CreateAndUpdateWithFeatures (85.99s)
--- PASS: TestAccProject_CreateAndUpdate (99.88s)
PASS
ok      github.com/microsoft/terraform-provider-azuredevops/azuredevops/internal/acceptancetests        163.427s

=== RUN   TestAccGitRepoFile_CreateAndUpdate
--- PASS: TestAccGitRepoFile_CreateAndUpdate (108.56s)
=== RUN   TestAccGitRepoFile_Create_IncorrectBranch
--- PASS: TestAccGitRepoFile_Create_IncorrectBranch (45.01s)
PASS
ok      github.com/microsoft/terraform-provider-azuredevops/azuredevops/internal/acceptancetests        157.497s