Add v4.2.0 Release (#641)

* add v4.1.1 release items

* correct semver version

* Document Additional Breaking Change For v3.0.0

* add `github_repository_file` bugfix

* move to correct release

CHANGELOG.md

@@ -1,3 +1,17 @@
+## 4.2.0 (Unreleased)
+
+ENHANCEMENTS:
+
+- Add `allowDeletions` and `allowsForcePushes` to `github_branch_protection` ([#623](https://github.com/terraform-providers/terraform-provider-github/pull/623))
+- Add GitHub App actor support to `github_branch_protection` ([#615](https://github.com/terraform-providers/terraform-provider-github/pull/615))
+
+BUG FIXES:
+
+- Allow `required_status_checks` `strict` to be `false` for `github_branch_protection` ([#614](https://github.com/terraform-providers/terraform-provider-github/pull/614))
+- Remove `ForceNew` on template-related options for `github_repository` ([#609](https://github.com/terraform-providers/terraform-provider-github/pull/609))
+- Fix parsing of input during imports of `github_branch_protection` ([#610](https://github.com/terraform-providers/terraform-provider-github/pull/610))
+- `github_repository_file` resource no longer iterates through all commits ([#644](https://github.com/terraform-providers/terraform-provider-github/pull/644))
+
 ## 4.1.0 (December 01, 2020)
 
 ENHANCEMENTS:
@@ -74,6 +88,7 @@ BREAKING CHANGES:
 - `organization` no longer deprecated
 - `individual` and `anonymous` removed
 - `owner` inferred from `organization`
+- `base_url` provider parameter no longer requires `/api/v3` suffix
 
 BUG FIXES: