test: Add support for fedora 32, 33 and Ubuntu 20.04

Enable creation and use of these OS images in docker-test.

Signed-off-by: Brad Hubbard <bhubbard@redhat.com>

diff --git a/src/test/fedora-32 b/src/test/fedora-32
new file mode 120000 (symlink)
index 0000000..d389c4c
--- /dev/null
+++ b/src/test/fedora-32
@@ -0,0 +1 @@
+fedora-31
\ No newline at end of file

diff --git a/src/test/fedora-33 b/src/test/fedora-33
new file mode 120000 (symlink)
index 0000000..d389c4c
--- /dev/null
+++ b/src/test/fedora-33
@@ -0,0 +1 @@
+fedora-31
\ No newline at end of file

diff --git a/src/test/ubuntu-20.04 b/src/test/ubuntu-20.04
new file mode 120000 (symlink)
index 0000000..1a2d403
--- /dev/null
+++ b/src/test/ubuntu-20.04
@@ -0,0 +1 @@
+ubuntu-18.04
\ No newline at end of file