test: rename workflow names and their files

Author: f-hollow

.github/workflows/pr-build-preview.yml renamed to .github/workflows/pr-build-preview-dev.yml

@@ -1,8 +1,9 @@
-name: Build preview for PR
+name: Build preview for PR develop
 
 on:
   pull_request:
     types: [opened, synchronize, reopened]
+    branches: [develop]
 
 permissions:
   contents: read

.github/workflows/pr-deploy-preview.yml renamed to .github/workflows/pr-deploy-preview-dev.yml

@@ -1,8 +1,8 @@
-name: Deploy preview for PR
+name: Deploy preview for PR develop
 
 on:
   workflow_run:
-    workflows: [Build preview for PR]
+    workflows: [Build preview for PR develop]
     types:
       - completed
     branches: