Fix podman version check conditional expression

Signed-off-by: Aravindhan Ayyanathan <aravindhan.a@est.tech>

Author: aravindtga

.github/workflows/go.yml

@@ -1,4 +1,4 @@
-# Copyright 2019 The kpt Authors
+# Copyright 2019-2026 The kpt Authors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -45,7 +45,7 @@ jobs:
     steps:
       # The CI complains about the podman not installed, adding some debugging info here.
       - name: check podman
-        if: ${{ matrix.runtime }} == 'podman'
+        if: ${{ matrix.runtime == 'podman' }}
         run: |
           which podman
           podman version