core: Added workflow_dispatch to some of the CI pipelines [skip ci]

.github/workflows/cypress.yml

@@ -7,6 +7,7 @@ on:
     branches: [ develop ]
   schedule:
     - cron: '0 0 * * *'
+  workflow_dispatch:
 
 jobs:
   automation-tests:

.github/workflows/pr.yml

@@ -3,6 +3,7 @@ name: PR Build
 on:
   pull_request:
     types: [opened, synchronize, reopened]
+  workflow_dispatch:
 
 jobs:
   build-ui: