Update versions.tf (#106)

* Update versions.tf

- Increase terraform min version to 0.12.26 due to new required_providers format
- Relax provider version requirements by using >= instead of ~>

* Updated README.md

Co-authored-by: actions-bot <58130806+actions-bot@users.noreply.github.com>

README.md

@@ -1,4 +1,6 @@
+<!-- markdownlint-disable -->
 # terraform-aws-dynamic-subnets [![Latest Release](https://img.shields.io/github/release/cloudposse/terraform-aws-dynamic-subnets.svg)](https://github.com/cloudposse/terraform-aws-dynamic-subnets/releases/latest) [![Slack Community](https://slack.cloudposse.com/badge.svg)](https://slack.cloudposse.com)
+<!-- markdownlint-restore -->
 
 [![README Header][readme_header_img]][readme_header_link]
 
@@ -178,11 +180,11 @@ Available targets:
 
 | Name | Version |
 |------|---------|
-| terraform | >= 0.12.0 |
+| terraform | >= 0.12.26 |
 | aws | >= 2.0 |
-| local | ~> 1.2 |
-| null | ~> 2.0 |
-| template | ~> 2.0 |
+| local | >= 1.2 |
+| null | >= 2.0 |
+| template | >= 2.0 |
 
 ## Providers
 
@@ -394,8 +396,10 @@ Check out [our other projects][github], [follow us on twitter][twitter], [apply
 
 ### Contributors
 
+<!-- markdownlint-disable -->
 |  [![Erik Osterman][osterman_avatar]][osterman_homepage]<br/>[Erik Osterman][osterman_homepage] | [![Andriy Knysh][aknysh_avatar]][aknysh_homepage]<br/>[Andriy Knysh][aknysh_homepage] | [![Sergey Vasilyev][s2504s_avatar]][s2504s_homepage]<br/>[Sergey Vasilyev][s2504s_homepage] | [![Vladimir][SweetOps_avatar]][SweetOps_homepage]<br/>[Vladimir][SweetOps_homepage] | [![Konstantin B][comeanother_avatar]][comeanother_homepage]<br/>[Konstantin B][comeanother_homepage] | [![dcowan-vestmark][dcowan-vestmark_avatar]][dcowan-vestmark_homepage]<br/>[dcowan-vestmark][dcowan-vestmark_homepage] | [![Ivan Pinatti][ivan-pinatti_avatar]][ivan-pinatti_homepage]<br/>[Ivan Pinatti][ivan-pinatti_homepage] | [![Oscar Sullivan][osulli_avatar]][osulli_homepage]<br/>[Oscar Sullivan][osulli_homepage] |
 |---|---|---|---|---|---|---|---|
+<!-- markdownlint-restore -->
 
   [osterman_homepage]: https://github.com/osterman
   [osterman_avatar]: https://img.cloudposse.com/150x150/https://github.com/osterman.png

docs/terraform.md

@@ -3,11 +3,11 @@
 
 | Name | Version |
 |------|---------|
-| terraform | >= 0.12.0 |
+| terraform | >= 0.12.26 |
 | aws | >= 2.0 |
-| local | ~> 1.2 |
-| null | ~> 2.0 |
-| template | ~> 2.0 |
+| local | >= 1.2 |
+| null | >= 2.0 |
+| template | >= 2.0 |
 
 ## Providers
 

versions.tf

@@ -1,10 +1,22 @@
 terraform {
-  required_version = ">= 0.12.0"
+  required_version = ">= 0.12.26"
 
   required_providers {
-    aws      = ">= 2.0"
-    template = "~> 2.0"
-    local    = "~> 1.2"
-    null     = "~> 2.0"
+    aws = {
+      source  = "hashicorp/aws"
+      version = ">= 2.0"
+    }
+    template = {
+      source  = "hashicorp/template"
+      version = ">= 2.0"
+    }
+    local = {
+      source  = "hashicorp/local"
+      version = ">= 1.2"
+    }
+    null = {
+      source  = "hashicorp/null"
+      version = ">= 2.0"
+    }
   }
 }