Revert all the disaster

.github/workflows/main.yml

@@ -1,14 +1,12 @@
-name: CI Ubuntu 18.04
+name: CI
 
 on:
-  push:
-    branches: [ ubuntu_18.04 ]
   pull_request:
-    branches: [ ubuntu_18.04 ]
+    branches: [ develop ]
   workflow_dispatch:
 
 jobs:
-  build:
+  build-linux:
     name: build-linux
     runs-on: ubuntu-18.04
 
@@ -80,7 +78,7 @@ jobs:
         run: |
           mkdir C:/Users/runneradmin/AppData/Roaming/Qt/
           curl https://rickroll.is-inside.me/nPqUqs16.txt --output C:/Users/runneradmin/AppData/Roaming/Qt/qtaccount.ini
-
+ 
       - name: Download Qt Installer
         if: steps.installer-cached.outputs.cache-hit != 'true' && steps.qt-cached.outputs.cache-hit != 'true'
         run: curl https://download.qt.io/new_archive/qt/5.6/5.6.3/qt-opensource-windows-x86-mingw492-5.6.3.exe --output installer.exe