Merge remote-tracking branch 'upstream/master' into fix-parse-secret-containing-equal-character

# Conflicts:
#	__tests__/buildx.test.ts

src/docker.ts

@@ -0,0 +1,7 @@
+import * as exec from './exec';
+
+export async function isDaemonRunning(): Promise<boolean> {
+  return await exec.exec(`docker`, ['version', '--format', '{{.Server.Os}}'], true).then(res => {
+    return !res.stdout.includes(' ') && res.success;
+  });
+}