Add concurrency group to ci-go-cover.yml

.github/workflows/ci-go-cover.yml

@@ -25,6 +25,10 @@ on:
   push:
     branches: [main, master]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
 
   # Verify minimum coverage is reached using `go test -short -cover` on latest-ubuntu with default version of Go.
@@ -40,7 +44,7 @@ jobs:
     - name: Install Go
       uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5.0.2
       with:
-        go-version: 1.21
+        go-version: 1.23
         check-latest: true
     - name: Install x448/float16
       run: go get github.com/x448/[email protected]