refactor: use buildx for multiarch container builds (#74)

.drone.yml

@@ -33,6 +33,7 @@ steps:
       dockerfile: Dockerfile
       dry_run: true
       repo: thegeeklab/${DRONE_REPO_NAME}
+      provenance: false
     when:
       ref:
         - refs/pull/**
@@ -76,6 +77,7 @@ steps:
       repo: thegeeklab/${DRONE_REPO_NAME}
       username:
         from_secret: docker_username
+      provenance: false
     when:
       ref:
         - refs/heads/main
@@ -93,6 +95,7 @@ steps:
       repo: quay.io/thegeeklab/${DRONE_REPO_NAME}
       username:
         from_secret: quay_username
+      provenance: false
     when:
       ref:
         - refs/heads/main
@@ -135,7 +138,6 @@ platform:
 
 steps:
   - name: pushrm-dockerhub
-    pull: always
     image: chko/docker-pushrm:1
     environment:
       DOCKER_PASS:
@@ -150,7 +152,6 @@ steps:
         - success
 
   - name: pushrm-quay
-    pull: always
     image: chko/docker-pushrm:1
     environment:
       APIKEY__QUAY_IO:
@@ -191,6 +192,6 @@ depends_on:
 
 ---
 kind: signature
-hmac: 5b86f7686fa6b01ec6cf143087e1328b3fd45a774d704647c55ef5ff482c781a
+hmac: be84fa5f05881cf3972a0a5405c919edac6e069175e554077727136e141d57d2
 
 ...