[PATCH userspace] README: fix broken testsuite run status badge

[Ondrej Mosnacek <omosnace@xxxxxxxxxx>]

The workflow name has changed for the testsuite run, so update README.md
accordingly.

Fixes: ee667ed976b5 ("ci: use Testing Farm for running the testsuite")
Signed-off-by: Ondrej Mosnacek <omosnace@xxxxxxxxxx>
---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 765b5626..1e16beea 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ SELinux Userspace
 
 ![SELinux logo](https://github.com/SELinuxProject.png)
 [![Run Tests](https://github.com/SELinuxProject/selinux/actions/workflows/run_tests.yml/badge.svg)](https://github.com/SELinuxProject/selinux/actions/workflows/run_tests.yml)
-[![Run SELinux testsuite in a virtual machine](https://github.com/SELinuxProject/selinux/actions/workflows/vm_testsuite.yml/badge.svg)](https://github.com/SELinuxProject/selinux/actions/workflows/vm_testsuite.yml)
+[![Run SELinux testsuite in Testing Farm](https://github.com/SELinuxProject/selinux/actions/workflows/tf_testsuite.yml/badge.svg)](https://github.com/SELinuxProject/selinux/actions/workflows/tf_testsuite.yml)
 [![OSS-Fuzz Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/selinux.svg)](https://oss-fuzz-build-logs.storage.googleapis.com/index.html#selinux)
 [![CIFuzz Status](https://github.com/SELinuxProject/selinux/actions/workflows/cifuzz.yml/badge.svg)](https://github.com/SELinuxProject/selinux/actions/workflows/cifuzz.yml)
 
-- 
2.48.0