ci(release): cancel stale tag builds in progress

concurrency cancel-in-progress: false let an obsolete run finish and
publish stale binaries when a tag is force-moved. flip to true so the
newer tag push cancels the older run.

Fixes Greptile P1 on PR #109.

Author: leszek3737

.github/workflows/release.yml

@@ -10,7 +10,7 @@ env:
 
 concurrency:
   group: release-${{ github.ref }}
-  cancel-in-progress: false
+  cancel-in-progress: true
 
 jobs:
   build: