ci: fix workflow

Author: viceice

.github/workflows/build.yml

@@ -24,15 +24,15 @@ on:
 
 env:
   # are we on a release branch?
-  DO_REALEASE: ${{ github.ref_name == github.event.repository.default_branch || github.ref_name == 'next' || startsWith(github.ref_name, 'maint/')}}
+  DO_REALEASE: ${{ github.ref_name == github.event.repository.default_branch || github.ref_name == 'next' || startsWith(github.ref_name, 'maint/') }}
   DRY_RUN: true
 
 permissions:
   contents: read
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.number || github.ref }}
-  cancel-in-progress: ${{ env.DO_REALEASE != 'true' }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' || (github.ref_name != github.event.repository.default_branch && github.ref_name != 'next' && !startsWith(github.ref_name, 'maint/'))  }}
 
 jobs:
   test: