tools: Don't build docker image for linux-arm64

.github/workflows/docker.yml

@@ -6,14 +6,14 @@ concurrency:
 on:
   push:
     branches:
-      - 'master'
-      - 'release/*'
+      - "master"
+      - "release/*"
     tags:
-      - 'v*.*'
+      - "v*.*"
 
 env:
   # Platforms to build the image for
-  BUILD_PLATFORMS: linux/amd64,linux/arm64
+  BUILD_PLATFORMS: linux/amd64
   DOCKERHUB_REPO: ${{ github.repository_owner }}/idf
 
 jobs: