feat: push to docker hub

.github/workflows/push-to-docker-hub.yml

@@ -0,0 +1,42 @@
+name: Push to Docker Hub GitHub Action
+
+on: [workflow_call, pull_request]
+
+permissions:
+  id-token: write
+  contents: read
+
+jobs:
+  build-and-push-to-artifact-registry:
+    defaults:
+      run:
+        working-directory: ./packages/near-fast-auth-signer
+    runs-on: ubuntu-latest
+    environment: mainnet
+    steps:
+      steps:
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      -
+        name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Get tag
+        id: get-tag
+        run: echo ::set-output name=short_ref::${GITHUB_REF#refs/*/}
+
+      - id: docker-push-tagged
+        name: Tag Docker image and push to Google Artifact Registry
+        uses: docker/build-push-action@v5
+        with:
+          push: true
+          tags: |
+             fast-auth-sdk-frontend:${{ steps.get-tag.outputs.short_ref }}
+             fast-auth-sdk-frontend:latest