Skip all pasta tests

A horrible timeout-flake exists in the version presently in CI VM images
`c20230221t162829z-f37f36d12`.  Since the PR for adding the 2023-02-21
images is more urgently needed (#17305) than a pasta fix, skip all pasta
tests while waiting for a fix.

Signed-off-by: Chris Evich <cevich@redhat.com>

test/system/505-networking-pasta.bats

@@ -12,6 +12,7 @@ load helpers.network
 
 function setup() {
     basic_setup
+    skip_if_rootless "FIXME: #17598 all pasta tests skipped for new version in new CI VM images."
     skip_if_not_rootless "pasta networking only available in rootless mode"
     skip_if_no_pasta "pasta not found: install pasta(1) to run these tests"