CI/GHA: add more libseccomp versions to the matrix

NOTE that libseccomp < 2.5.x is no longer officially supported upstream,
but this library still works with 2.3.x and 2.4.x, so we test against
those.

Signed-off-by: Kir Kolyshkin <[email protected]>

Author: kolyshkin

.github/workflows/test.yml

@@ -16,7 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         go-version: [1.15.x, 1.16.x, 1.17.x]
-        libseccomp: ["v2.5.2", "HEAD"]
+        libseccomp: ["v2.3.3", "v2.4.3", "v2.5.2", "HEAD"]
 
     steps: