chore: Replace Makefile with atmos.yaml (#2449)

Author: osterman

Makefile

@@ -1,4 +1,3 @@
----
 #
 # This is the canonical configuration for the `README.md`
 # Run `make readme` to rebuild the `README.md`
@@ -17,13 +16,17 @@ license: "APACHE2"
 github_repo: cloudposse/github-action-atmos-terraform-drift-detection
 
 badges:
-  - name: "Latest Release"
-    image: "https://img.shields.io/github/release/cloudposse/github-action-atmos-terraform-drift-detection.svg"
-    url: "https://github.com/cloudposse/github-action-atmos-terraform-drift-detection/releases/latest"
-  - name: "Slack Community"
-    image: "https://slack.cloudposse.com/badge.svg"
-    url: "https://slack.cloudposse.com"
-
+  - name: Latest Release
+    image: https://img.shields.io/github/release/cloudposse/github-action-atmos-terraform-drift-detection.svg?style=for-the-badge
+    url: https://github.com/cloudposse/github-action-atmos-terraform-drift-detection/releases/latest
+  - name: Last Updated
+    image: https://img.shields.io/github/last-commit/cloudposse/github-action-atmos-terraform-drift-detection.svg?style=for-the-badge
+    url: https://github.com/cloudposse/github-action-atmos-terraform-drift-detection/commits
+  - name: Slack Community
+    image: https://slack.cloudposse.com/for-the-badge.svg
+    url: https://cloudposse.com/slack
+
+# List any related terraform modules that this module may be used with or that this module depends on.
 related: []
 
 description: This Github Action is used to detect drift
@@ -120,13 +123,5 @@ usage: |-
               max-opened-issues: '3'
   ```
 
-include:
-  - "docs/github-action.md"
-
-contributors:
-  - name: "Zinovii Dmytriv"
-    github: "zdmytriv"
-  - name: "Erik Osterman"
-    github: "osterman"
-  - name: "Daniel Miller"
-    github: "milldr"
+include: []
+contributors: []

README.yaml

@@ -0,0 +1,12 @@
+# Atmos Configuration — powered by https://atmos.tools
+#
+# This configuration enables centralized, DRY, and consistent project scaffolding using Atmos.
+#
+# Included features:
+# - Organizational custom commands: https://atmos.tools/core-concepts/custom-commands
+# - Automated README generation: https://atmos.tools/cli/commands/docs/generate
+#
+
+# Import shared configuration used by all modules
+import:
+  - https://raw.githubusercontent.com/cloudposse/.github/refs/heads/main/.github/atmos/terraform-module.yaml