chore: Login to docker hub (#139)

Login to docker hub

.github/workflows/tests.yml

@@ -56,13 +56,21 @@ jobs:
           jwtGithubAudience: "https://github.com/fluencelabs"
           jwtTtl: 300
           secrets: |
+            kv/hub.docker.com/fluencebot username | DOCKER_HUB_USERNAME ;
+            kv/hub.docker.com/fluencebot password | DOCKER_HUB_PASSWORD ;
             kv/docker-registry/basicauth/ci username | DOCKER_USERNAME ;
             kv/docker-registry/basicauth/ci password | DOCKER_PASSWORD ;
             kv/npm-registry/basicauth/ci token | NODE_AUTH_TOKEN ;
             kv/ci/frpc chain_urls | RPC_PROVIDERS ;
             kv/ci/frpc private_key | FLUENCE_CHAIN_PRIVATE_KEY
 
-      - name: Login to DockerHub
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ env.DOCKER_HUB_USERNAME }}
+          password: ${{ env.DOCKER_HUB_PASSWORD }}
+
+      - name: Login to private registry
         uses: docker/login-action@v3
         with:
           registry: docker.fluence.dev