ci: build oldest working EFA installer and latest

Rather than maintaining a list that needs to be bumped continually,
build just against 1.25.0 (which is the oldest one that worked without
any changes to the action itself, likely due to missing platform
support) and latest. This gives us visibility into our minimum EFA
installer version as well as coverage against the newest.

.github/workflows/distcheck.yaml

@@ -26,9 +26,7 @@ jobs:
           - al2
         efainstaller:
           - latest
-          - 1.32.0
-          - 1.31.0
-          - 1.30.0
+          - 1.25.0
         include:
           - amazonlinux: al2023
             efainstallerdir: ALINUX2023