try to stop same github action

Signed-off-by: Peter Siegmund <peter@rdkr.com>

.github/workflows/esp-idf_build.yml

@@ -9,11 +9,15 @@ on:
     paths:
       - "ePaper-ESP-IDF/**"
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     strategy:
       matrix:
-        idf_ver: [release-v5.1, release-v5.2, release-v5.3, master]
+        idf_ver: [release-v5.1, release-v5.2, release-v5.3, latest]
         idf_target: [esp32s3]
 
     runs-on: ubuntu-latest

.github/workflows/esp-idf_release.yml

@@ -5,6 +5,10 @@ on:
   release:
     types: [published]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   release:
     strategy: