feat: add support for allow_update_branch

[tobiasehlert]

• add support for setting allow_update_branch with default being false

fix #132
rel #148 (similar except that it's not updating provider versions)

[shinenelson]

As much as I want this change to be merged in without a breaking change, this change would also require a breaking change since the minimum required provider version would have to be bumped to >= 5.7.0.

The current provider version constraint for this module is >= 4.20, < 6.0.

terraform-github-repository/versions.tf

Line 12 in ee6001a

version = ">= 4.20, < 6.0"

allow_update_branch was added in provider version v5.7.0.

So the minimum required version for this module should be bumped to at least >= 5.7.0. Otherwise, users who has a lower provider version ( < 5.7.0 ) and use a pessimistic operator constraint for the module would have their code breaking.
This probably might be the reason why this change was also merged into #148

[tobiasehlert]

As much as I want this change to be merged in without a breaking change, this change would also require a breaking change since the minimum required provider version would have to be bumped to >= 5.7.0.

The current provider version constraint for this module is >= 4.20, < 6.0.

terraform-github-repository/versions.tf

Line 12 in ee6001a

version = ">= 4.20, < 6.0"

allow_update_branch was added in provider version v5.7.0.
So the minimum required version for this module should be bumped to at least >= 5.7.0. Otherwise, users who has a lower provider version ( < 5.7.0 ) and use a pessimistic operator constraint for the module would have their code breaking. This probably might be the reason why this change was also merged into #148

added require of version to be ">= 5.8, < 6.0".