feat: add ability to create pre-release tags (#17)

Reviewed-on: #17
Co-authored-by: Timo Behrendt <t.behrendt@t00n.de>
Co-committed-by: Timo Behrendt <t.behrendt@t00n.de>

action.yml

@@ -11,6 +11,14 @@ inputs:
     description: "Token for repository access"
     required: true
     default: "${{ github.token }}"
+  prerelease:
+    description: "Whether to create a prerelease tag"
+    required: false
+    default: "false"
+  max-tags:
+    description: "Maximum number of tags to fetch when looking for the latest non-pre-release tag"
+    required: false
+    default: "50"
 
 outputs:
   new-tag: