ci: remove develop branch from workflow and documentation

Author: N6REJ

.github/workflows/postgresql-test.yml

@@ -4,7 +4,7 @@ on:
   pull_request:
     branches:
       - main
-      - develop
+
     types: [opened, synchronize, reopened, edited]
   workflow_dispatch:
     inputs:

docs/CI-CD-TESTING.md

@@ -9,7 +9,7 @@ This document describes the automated testing workflow for the Bearsampp Postgre
 The PostgreSQL testing workflow is triggered automatically on:
 
 - **Pull Request Events**: When a PR is opened, synchronized (new commits pushed), reopened, or edited
-  - Target branches: `main` or `develop`
+  - Target branches: `main`
 
 ## Test Scope