Update docker CI

Author: ronald-jaepel

.github/workflows/cd_docker.yml

@@ -7,17 +7,23 @@ on:
       - 'v[0-9]+.[0-9]+.[0-9]+-*'        # Matches v1.2.3-alpha, v1.2.3-beta.1, etc.
     branches:
       - feature/add_docker_build
-
   workflow_dispatch:
     inputs:
+      ref:
+        description: 'Commit hash, branch name, or tag to run the CI pipeline for'
+        required: false
+        default: 'master'
+        type: string
       cadet_python_hash:
         description: 'CADET-Python git hash or branch'
         required: false
         default: 'master'
+        type: string
       cadet_process_hash:
         description: 'CADET-Process git hash or branch'
         required: false
         default: 'master'
+        type: string
 
 
 jobs: