Allow manual triggering of github action. (#150)

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 65c9e06..398c5ad 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -27,6 +27,8 @@
     types: [ opened, synchronize, reopened ]
   schedule:
     - cron: '30 1 * * 1,3,5'
+  workflow_dispatch:
+
 
 permissions: read-all