Update build action

Author: pailakka

.github/workflows/dockerimage.yml

@@ -10,17 +10,19 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
-    -
-      name: Login to DockerHub
-      uses: docker/login-action@v1 
-      with:
-        username: ${{ secrets.DOCKER_USERNAME }}
-        password: ${{ secrets.DOCKER_PASSWORD }}
-    -
-      name: Build and push
-      uses: docker/build-push-action@v2
-      with:
-        push: true
-        context: mtk2garmin-converter
-        tags: teemupel/mtk2garmin-converter:latest
+      -
+        name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ vars.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      -
+        name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          push: true
+          context: mtk2garmin-converter
+          tags: teemupel/mtk2garmin-converter:latest