Update linux-builds.yml

Author: githubuser0xFFFF

.github/workflows/linux-builds.yml

@@ -12,7 +12,7 @@ jobs:
     - name: install qt
       run: |
         sudo apt-get update –fix-missing
-	sudo apt-get install qt5-default
+        sudo apt-get install qt5-default
     - name: qmake
       run: qmake
     - name: make