refactor: use buildx for multiarch container builds (#81)

.drone.yml

@@ -40,6 +40,7 @@ steps:
       dockerfile: Dockerfile
       dry_run: true
       repo: thegeeklab/${DRONE_REPO_NAME}
+      provenance: false
     when:
       ref:
         - refs/pull/**
@@ -85,6 +86,7 @@ steps:
       repo: thegeeklab/${DRONE_REPO_NAME}
       username:
         from_secret: docker_username
+      provenance: false
     when:
       ref:
         - refs/heads/main
@@ -102,6 +104,7 @@ steps:
       repo: quay.io/thegeeklab/${DRONE_REPO_NAME}
       username:
         from_secret: quay_username
+      provenance: false
     when:
       ref:
         - refs/heads/main
@@ -144,7 +147,6 @@ platform:
 
 steps:
   - name: pushrm-dockerhub
-    pull: always
     image: chko/docker-pushrm:1
     environment:
       DOCKER_PASS:
@@ -159,7 +161,6 @@ steps:
         - success
 
   - name: pushrm-quay
-    pull: always
     image: chko/docker-pushrm:1
     environment:
       APIKEY__QUAY_IO:
@@ -200,6 +201,6 @@ depends_on:
 
 ---
 kind: signature
-hmac: 9bb496b4d68fd0b2f3b93e595e9541c7098a10ce45495889b7eb77e6fe051f3e
+hmac: f0efee75bcce31f390fde5d226a37e8c1552c22684b568645bdcc58b67c8c46f
 
 ...