Add workflow_dispatch trigger to CI for manual runs

Signed-off-by: Sebastien Tardif <sebtardif@ncf.ca>

Author: SebTardif

.github/workflows/ci.yml

@@ -3,6 +3,7 @@ name: ci
 on:
   push:
   pull_request:
+  workflow_dispatch:
 
 concurrency:
   group: ci-${{ github.workflow }}-${{ github.ref }}