Fix conditional for Ubuntu job execution

Author: aka411

.github/workflows/ci.yml

@@ -72,5 +72,5 @@ jobs:
         gh-pages-branch: 'gh-pages'
         auto-push: true
       #  ONLY RUNS ON UBUNTU: Prevents redundant pushes from the Windows job
-      if: success() && matrix.os == 'ubuntu-latest'
+    if: success() && matrix.os == 'ubuntu-latest'