Make it easier to produce 'prerelease' versions

.github/workflows/ci-integ-test-full.yml

@@ -3,6 +3,8 @@ name: CI-integ-test-full
 on:
   workflow_dispatch:
   push:
+    branches:
+    - 'main'
     paths:
     - 'dist/**'
 

.github/workflows/ci-update-dist.yml

@@ -5,6 +5,7 @@ on:
   push:
     branches: 
     - 'main'
+    - 'prerelease/**'
     - 'release/**'
     paths-ignore:
     - 'dist/**'