ci: rename workflow name from build to scan

Signed-off-by: Giles Cope <gilescope@gmail.com>

Author: gilescope

.github/workflows/scan.yaml

@@ -15,7 +15,7 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  build:
+  scan:
     runs-on: ubuntu-latest
     permissions:
       actions: read