tests/podman: exclude ever failing test case

The test case named

> podman build and remove basic alpine with TMPDIR as relative

always fails here because we're running it inside docker using
overlayfs, and TMPDIR="." set by test results in overlay upperdir
being on overlayfs. Since nested overlayfs is not supported, the
mount fails:

> overlay: filesystem on ..../upper not supported as upperdir

Since the test case is always failing and is not really testing
any specific crun aspect, let's skip it.

This should bring Test (podman) back to green.

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

Author: kolyshkin

tests/podman/run-tests.sh

@@ -46,7 +46,10 @@ export TMPDIR=/var/tmp
 #
 # - Podman run with specified static IPv6 has correct IP
 #   Does not work inside test environment.
+#
+# - podman build and remove basic alpine with TMPDIR as relative
+#   Does not work inside container as upperdir is overlayfs (issue 1999).
 
-ginkgo --focus='.*' --skip='.*(selinux|notify_socket|systemd|podman run exit 12*|podman run exit code on failure to exec|failed to start|search|trust|inspect|logs|generate|import|mounted rw|inherit host devices|play kube|cgroups=disabled|privileged CapEff|device-cgroup-rule|capabilities|network|pull from docker|--add-host|removes a pod with a container|prune removes a pod with a stopped container|overlay volume flag|prune unused images|podman images filter|image list filter|create --pull|podman ps json format|using journald for container|image tree|--pull|shared layers|child images|cached images|flag with multiple mounts|overlay and used as workdir|image_copy_tmp_dir|Podman run with specified static IPv6 has correct IP|authenticated push|pod create --share-parent|podman kill paused container|login and logout|podman top on privileged container|local registry with authorization|podman update container all options v2|push test|podman pull and run on split imagestore|Podman kube play|uidmapping and gidmapping|push with --add-compression|enforces DiffID matching|push with authorization|artifact).*' \
+ginkgo --focus='.*' --skip='.*(selinux|notify_socket|systemd|podman run exit 12*|podman run exit code on failure to exec|failed to start|search|trust|inspect|logs|generate|import|mounted rw|inherit host devices|play kube|cgroups=disabled|privileged CapEff|device-cgroup-rule|capabilities|network|pull from docker|--add-host|removes a pod with a container|prune removes a pod with a stopped container|overlay volume flag|prune unused images|podman images filter|image list filter|create --pull|podman ps json format|using journald for container|image tree|--pull|shared layers|child images|cached images|flag with multiple mounts|overlay and used as workdir|image_copy_tmp_dir|Podman run with specified static IPv6 has correct IP|authenticated push|pod create --share-parent|podman kill paused container|login and logout|podman top on privileged container|local registry with authorization|podman update container all options v2|push test|podman pull and run on split imagestore|Podman kube play|uidmapping and gidmapping|push with --add-compression|enforces DiffID matching|push with authorization|artifact|podman build and remove basic alpine with TMPDIR as relative).*' \
 	 -vv -tags "seccomp ostree selinux exclude_graphdriver_devicemapper" \
 	 -timeout=50m -cover -flake-attempts 3 -progress -trace -no-color test/e2e/.