chore: restore chglog config

Author: Enda Phelan

.chglog/config.yml

@@ -0,0 +1,28 @@
+style: github
+template: CHANGELOG.tpl.md
+info:
+  title: CHANGELOG
+  repository_url: https://github.com/craicoverflow/install-git-chglog
+options:
+  tag_filter_pattern: '^v[0-9]+\.[0-9]+\.[0-9]+$'
+  commits:
+    filters:
+      Type:
+        - feat
+        - fix
+        - perf
+  commit_groups:
+    title_maps:
+      feat: Features
+      fix: Bug Fixes
+      perf: Performance Improvements
+      refactor: Code Refactoring
+  header:
+    pattern: "^(\\w*)(?:\\(([\\w\\$\\.\\-\\*\\s]*)\\))?\\:\\s(.*)$"
+    pattern_maps:
+      - Type
+      - Scope
+      - Subject
+  notes:
+    keywords:
+      - BREAKING CHANGE

.github/workflows/changelog.yml

@@ -10,10 +10,9 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+        with:
+          fetch-depth: 1
 
-      - name: Fetch changes
-        run: git fetch origin --prune --tags --unshallow
-    
       - 
         name: Install git-chglog
         uses: craicoverflow/install-git-chglog@v0.3.1