testing/apx: replace tabs for spaces in the config file

testing/apx/APKBUILD

@@ -36,5 +36,5 @@ package() {
 
 sha512sums="
 4b91d63a47eb07751bdd4a547c2e83b70ae1621226c671d69490f610b8258adce6aa54824071f488fdd9d3276255c909bfe93e501949139f818d3a8e45711cec  apx-1.6.1-2.tar.gz
-53bbd1121381c030518c0ede214ad28da782b216c3ed57bf0a85051f495a33ec2da7ea57f2883579b36a6a20c8ec351b573164467426063061762b32ebef859f  config.json
+0d0e999b5b2e714bcd63e69357740a805cf3670c2e9d03c36700de17aec0445e56cb1da27b1b192fe11287beb98833d616fcc51937872b845bdb693ea9901929  config.json
 "

testing/apx/config.json

@@ -3,5 +3,5 @@
     "containername": "apx_managed_alpine",
     "image": "docker.io/library/alpine",
     "pkgmanager": "apk",
-	"distroboxpath": "/usr/bin/distrobox"
+    "distroboxpath": "/usr/bin/distrobox"
 }