Fix: Invalid sonobuoy result parsing

Refs: #2314
- The k8s_conformance task in platform tests was failing under some
  circumstances, this was caused by a grep that was catching all results
  in the format "Failed: *", the * was sometimes not a numeric value which
  would crash the original *.to_s.to_i chain, it is still unknown what
  value would be there (maybe "NA/Error").
- The "fix" adds more robust handling of erroneous values, namely they
  will get printed through a log.warn and not cause an exception,
  further changes will be done if more precise errors are reported.
- Also added missing namespace in task call.

Signed-off-by: svteb <slavo.valko@tietoevry.com>

Author: svteb

src/tasks/platform/platform.cr

@@ -65,10 +65,26 @@ task "k8s_conformance" do |t, args|
     results = results_stdout.to_s
     Log.debug { results }
 
-    # Grab the failed line from the results
+    failed_count = nil
+    if failed_match_data = results.match(/Failed:\s+(\S+)/)
+      failed_raw_value = failed_match_data[1]
+      if failed_integer = failed_raw_value.to_i?
+        Log.debug { "Sonobuoy summary: Failed=#{failed_raw_value}" }
+        failed_count = failed_integer
+      else
+        Log.warn {
+          "Matched non-numeric 'Failed:' value #{failed_raw_value.inspect} — cannot determine result.\nRaw results:\n#{results}"
+        }
+      end
+    else
+      Log.warn {
+        "No 'Failed:' line found in Sonobuoy results — cannot determine result.\nRaw results:\n#{results}"
+      }
+    end
 
-    failed_count = ((results.match(/Failed: (.*)/)).try &.[1]) 
-    if failed_count.to_s.to_i > 0
+    if failed_count.nil?
+      CNFManager::TestCaseResult.new(CNFManager::ResultStatus::Error, "Unable to determine failure count from Sonobuoy results")
+    elsif failed_count > 0
       CNFManager::TestCaseResult.new(CNFManager::ResultStatus::Failed, "K8s conformance test has #{failed_count} failure(s)!")
     else
       CNFManager::TestCaseResult.new(CNFManager::ResultStatus::Passed, "K8s conformance test has no failures")